diff --git a/src/KeePassLib2Android/KeePassLib2Android.csproj b/src/KeePassLib2Android/KeePassLib2Android.csproj
index 2ce28673..f100ebca 100644
--- a/src/KeePassLib2Android/KeePassLib2Android.csproj
+++ b/src/KeePassLib2Android/KeePassLib2Android.csproj
@@ -14,6 +14,7 @@
     <AssemblyName>KeePassLib2Android</AssemblyName>
     <TargetFrameworkVersion>v6.0</TargetFrameworkVersion>
     <AndroidUseLatestPlatformSdk>True</AndroidUseLatestPlatformSdk>
+    <NuGetPackageImportStamp>8482b288</NuGetPackageImportStamp>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>True</DebugSymbols>
@@ -54,6 +55,9 @@
     <Reference Include="Mono.Android" />
     <Reference Include="OpenTK-1.0" />
     <Reference Include="Mono.Security" />
+    <Reference Include="Xamarin.Insights">
+      <HintPath>..\packages\Xamarin.Insights.1.11.3\lib\MonoAndroid10\Xamarin.Insights.dll</HintPath>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="IDatabaseFormat.cs" />
@@ -146,6 +150,7 @@
     <Compile Include="Delegates\Handlers.cs" />
   </ItemGroup>
   <ItemGroup>
+    <None Include="packages.config" />
     <None Include="Resources\AboutResources.txt" />
     <None Include="KeePassLib.pfx" />
   </ItemGroup>
@@ -163,4 +168,11 @@
     </ProjectReference>
   </ItemGroup>
   <Import Project="$(MSBuildExtensionsPath)\Novell\Novell.MonoDroid.CSharp.targets" />
+  <Import Project="..\packages\Xamarin.Insights.1.11.3\build\MonoAndroid10\Xamarin.Insights.targets" Condition="Exists('..\packages\Xamarin.Insights.1.11.3\build\MonoAndroid10\Xamarin.Insights.targets')" />
+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>Dieses Projekt verweist auf mindestens ein NuGet-Paket, das auf diesem Computer fehlt. Aktivieren Sie die Wiederherstellung von NuGet-Paketen, um die fehlende Datei herunterzuladen. Weitere Informationen finden Sie unter "http://go.microsoft.com/fwlink/?LinkID=322105". Die fehlende Datei ist "{0}".</ErrorText>
+    </PropertyGroup>
+    <Error Condition="!Exists('..\packages\Xamarin.Insights.1.11.3\build\MonoAndroid10\Xamarin.Insights.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Xamarin.Insights.1.11.3\build\MonoAndroid10\Xamarin.Insights.targets'))" />
+  </Target>
 </Project>
\ No newline at end of file
diff --git a/src/KeePassLib2Android/Kp2aLog.cs b/src/KeePassLib2Android/Kp2aLog.cs
index 4327a443..84728988 100644
--- a/src/KeePassLib2Android/Kp2aLog.cs
+++ b/src/KeePassLib2Android/Kp2aLog.cs
@@ -16,6 +16,7 @@ This file is part of Keepass2Android, Copyright 2013 Philipp Crocoll.
   */
 
 using System;
+using System.Collections.Generic;
 using System.IO;
 using Android.Preferences;
 using KeePassLib.Serialization;
@@ -68,5 +69,13 @@ namespace keepass2android
 				return (bool) _logToFile;
 			}
 		}
+		public static event EventHandler<Exception> OnUnexpectedError;
+
+		public static void LogUnexpectedError(Exception exception)
+		{
+			Log(exception.ToString());
+			if (OnUnexpectedError != null)
+				OnUnexpectedError(null, exception);
+		}
 	}
 }
\ No newline at end of file
diff --git a/src/KeePassLib2Android/Serialization/IOConnection.cs b/src/KeePassLib2Android/Serialization/IOConnection.cs
index 575bbf45..60cfe0b4 100644
--- a/src/KeePassLib2Android/Serialization/IOConnection.cs
+++ b/src/KeePassLib2Android/Serialization/IOConnection.cs
@@ -251,7 +251,7 @@ namespace KeePassLib.Serialization
 						Kp2aLog.Log(e.ToString());
 					} catch (Exception e)
 					{ 
-						Kp2aLog.Log(e.ToString());
+						Kp2aLog.LogUnexpectedError(e);
 						Debug.Assert(false); 
 					}
 				}
diff --git a/src/Kp2aBusinessLogic/Io/AndroidContentStorage.cs b/src/Kp2aBusinessLogic/Io/AndroidContentStorage.cs
index 6d24fa10..5bf85f3e 100644
--- a/src/Kp2aBusinessLogic/Io/AndroidContentStorage.cs
+++ b/src/Kp2aBusinessLogic/Io/AndroidContentStorage.cs
@@ -164,7 +164,7 @@ namespace keepass2android.Io
 			}
 			catch (Exception e)
 			{
-				Kp2aLog.Log(e.ToString());
+				Kp2aLog.LogUnexpectedError(e);
 
 				return false;
 			}
diff --git a/src/Kp2aBusinessLogic/Io/IoUtil.cs b/src/Kp2aBusinessLogic/Io/IoUtil.cs
index 6098a0e5..74368c36 100644
--- a/src/Kp2aBusinessLogic/Io/IoUtil.cs
+++ b/src/Kp2aBusinessLogic/Io/IoUtil.cs
@@ -69,7 +69,7 @@ namespace keepass2android.Io
 			}
 			catch (Exception e)
 			{
-				Kp2aLog.Log(e.ToString());
+				Kp2aLog.LogUnexpectedError(e);
 				return false;
 			}
 			
diff --git a/src/Kp2aBusinessLogic/Kp2aBusinessLogic.csproj b/src/Kp2aBusinessLogic/Kp2aBusinessLogic.csproj
index 5c3bc088..962b5a25 100644
--- a/src/Kp2aBusinessLogic/Kp2aBusinessLogic.csproj
+++ b/src/Kp2aBusinessLogic/Kp2aBusinessLogic.csproj
@@ -14,6 +14,7 @@
     <GenerateSerializationAssemblies>Off</GenerateSerializationAssemblies>
     <TargetFrameworkVersion>v6.0</TargetFrameworkVersion>
     <AndroidUseLatestPlatformSdk>False</AndroidUseLatestPlatformSdk>
+    <NuGetPackageImportStamp>06ffb71c</NuGetPackageImportStamp>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -53,6 +54,9 @@
     <Reference Include="System.Core" />
     <Reference Include="System.Xml.Linq" />
     <Reference Include="System.Xml" />
+    <Reference Include="Xamarin.Insights">
+      <HintPath>..\packages\Xamarin.Insights.1.11.3\lib\MonoAndroid10\Xamarin.Insights.dll</HintPath>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="database\CheckDatabaseForChanges.cs" />
@@ -138,7 +142,17 @@
       <Name>TwofishCipher</Name>
     </ProjectReference>
   </ItemGroup>
+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
   <Import Project="$(MSBuildExtensionsPath)\Xamarin\Android\Xamarin.Android.CSharp.targets" />
+  <Import Project="..\packages\Xamarin.Insights.1.11.3\build\MonoAndroid10\Xamarin.Insights.targets" Condition="Exists('..\packages\Xamarin.Insights.1.11.3\build\MonoAndroid10\Xamarin.Insights.targets')" />
+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>Dieses Projekt verweist auf mindestens ein NuGet-Paket, das auf diesem Computer fehlt. Aktivieren Sie die Wiederherstellung von NuGet-Paketen, um die fehlende Datei herunterzuladen. Weitere Informationen finden Sie unter "http://go.microsoft.com/fwlink/?LinkID=322105". Die fehlende Datei ist "{0}".</ErrorText>
+    </PropertyGroup>
+    <Error Condition="!Exists('..\packages\Xamarin.Insights.1.11.3\build\MonoAndroid10\Xamarin.Insights.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Xamarin.Insights.1.11.3\build\MonoAndroid10\Xamarin.Insights.targets'))" />
+  </Target>
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
   <Target Name="BeforeBuild">
diff --git a/src/Kp2aBusinessLogic/SelectStorageLocationActivityBase.cs b/src/Kp2aBusinessLogic/SelectStorageLocationActivityBase.cs
index c5ce53bc..8ecc51fa 100644
--- a/src/Kp2aBusinessLogic/SelectStorageLocationActivityBase.cs
+++ b/src/Kp2aBusinessLogic/SelectStorageLocationActivityBase.cs
@@ -135,7 +135,7 @@ namespace keepass2android
 								}
 								catch (Exception e)
 								{
-									Kp2aLog.Log(e.ToString());
+									Kp2aLog.LogUnexpectedError(e);
 								}
 								
 							}
diff --git a/src/Kp2aBusinessLogic/database/edit/LoadDB.cs b/src/Kp2aBusinessLogic/database/edit/LoadDB.cs
index edb2f81c..d54f4693 100644
--- a/src/Kp2aBusinessLogic/database/edit/LoadDB.cs
+++ b/src/Kp2aBusinessLogic/database/edit/LoadDB.cs
@@ -94,20 +94,20 @@ namespace keepass2android
 				{
 					message = innerException.Message;
 					// Override the message shown with the last (hopefully most recent) inner exception
-					Kp2aLog.Log("Exception: " + innerException);
+					Kp2aLog.LogUnexpectedError(innerException);
 				}
 				Finish(false, _app.GetResourceString(UiStringKey.ErrorOcurred) + " " + message, Exception);
 				return;
 			}
 			catch (DuplicateUuidsException e)
 			{
-				Kp2aLog.Log("Exception: " + e);
+				Kp2aLog.LogUnexpectedError(e);
 				Finish(false, _app.GetResourceString(UiStringKey.DuplicateUuidsError) + " " + e.Message + _app.GetResourceString(UiStringKey.DuplicateUuidsErrorAdditional), Exception);
 				return;
 			}
 			catch (Exception e)
 			{
-				Kp2aLog.Log("Exception: " + e);
+				Kp2aLog.LogUnexpectedError(e);
 				Finish(false, _app.GetResourceString(UiStringKey.ErrorOcurred) + " " + e.Message, Exception);
 				return;
 			}
diff --git a/src/Kp2aBusinessLogic/database/edit/SaveDB.cs b/src/Kp2aBusinessLogic/database/edit/SaveDB.cs
index 1d64245f..363bde4f 100644
--- a/src/Kp2aBusinessLogic/database/edit/SaveDB.cs
+++ b/src/Kp2aBusinessLogic/database/edit/SaveDB.cs
@@ -164,7 +164,7 @@ namespace keepass2android
 				bSuccess = false;
 			}
 */
-					Kp2aLog.Log("Error while saving: " + e.ToString());
+					Kp2aLog.LogUnexpectedError(e);
 					Finish(false, e.Message);
 					return;
 				}
@@ -188,6 +188,7 @@ namespace keepass2android
 						}
 						catch (Exception e)
 						{
+							Kp2aLog.LogUnexpectedError(e);
 							Kp2aLog.Log("Error in worker thread of SaveDb: " + e);
 							Finish(false, e.Message);
 						}
@@ -197,6 +198,7 @@ namespace keepass2android
 			}
 			catch (Exception e)
 			{
+				Kp2aLog.LogUnexpectedError(e);
 				Kp2aLog.Log("Error starting worker thread of SaveDb: "+e);
 				Finish(false, e.Message);
 			}
diff --git a/src/keepass2android/ChallengeInfo.cs b/src/keepass2android/ChallengeInfo.cs
index 2fdb1408..36926cbe 100644
--- a/src/keepass2android/ChallengeInfo.cs
+++ b/src/keepass2android/ChallengeInfo.cs
@@ -86,7 +86,7 @@ namespace KeeChallenge
 			}
 			catch (Exception e)
 			{
-				Kp2aLog.Log(e.ToString());
+				Kp2aLog.LogUnexpectedError(e);
 			}
 			finally
 			{
diff --git a/src/keepass2android/CreateDatabaseActivity.cs b/src/keepass2android/CreateDatabaseActivity.cs
index 191da39d..6e251443 100644
--- a/src/keepass2android/CreateDatabaseActivity.cs
+++ b/src/keepass2android/CreateDatabaseActivity.cs
@@ -388,7 +388,7 @@ namespace keepass2android
 							}
 							catch (Exception e)
 							{
-								Kp2aLog.Log(e.ToString());
+								Kp2aLog.LogUnexpectedError(e);
 							}
 
 						}
diff --git a/src/keepass2android/EntryActivity.cs b/src/keepass2android/EntryActivity.cs
index f2574a3c..783f8234 100644
--- a/src/keepass2android/EntryActivity.cs
+++ b/src/keepass2android/EntryActivity.cs
@@ -246,7 +246,7 @@ namespace keepass2android
 				}
 				catch (Exception e)
 				{
-					Kp2aLog.Log(e.ToString());
+					Kp2aLog.LogUnexpectedError(e);
 				}
 				
 			}
diff --git a/src/keepass2android/EntryEditActivity.cs b/src/keepass2android/EntryEditActivity.cs
index cb2e3cf2..3faa9261 100644
--- a/src/keepass2android/EntryEditActivity.cs
+++ b/src/keepass2android/EntryEditActivity.cs
@@ -1128,7 +1128,8 @@ namespace keepass2android
 			TextView tv = (TextView) FindViewById(viewId);
 		    if (tv == null)
 		    {
-		        Kp2aLog.Log("Invalid viewId " + viewId);
+		        var e = new Exception("Invalid viewId " + viewId);
+				Kp2aLog.LogUnexpectedError(e);
 		        return;
 		    }
 			tv.Text = text;
diff --git a/src/keepass2android/ExportDatabaseActivity.cs b/src/keepass2android/ExportDatabaseActivity.cs
index 507598bf..b10d0e07 100644
--- a/src/keepass2android/ExportDatabaseActivity.cs
+++ b/src/keepass2android/ExportDatabaseActivity.cs
@@ -97,7 +97,7 @@ namespace keepass2android
 							}
 							catch (Exception e)
 							{
-								Kp2aLog.Log(e.ToString());
+								Kp2aLog.LogUnexpectedError(e);
 							}
 
 						}
diff --git a/src/keepass2android/FingerprintSamsungIdentifier.cs b/src/keepass2android/FingerprintSamsungIdentifier.cs
index 55773fd4..399c468e 100644
--- a/src/keepass2android/FingerprintSamsungIdentifier.cs
+++ b/src/keepass2android/FingerprintSamsungIdentifier.cs
@@ -134,7 +134,7 @@ namespace keepass2android
 			}
 			catch (IllegalStateException ise)
 			{
-				Kp2aLog.Log(ise.Message);
+				Kp2aLog.LogUnexpectedError(ise);
 			}
 		}
 	}
diff --git a/src/keepass2android/GroupBaseActivity.cs b/src/keepass2android/GroupBaseActivity.cs
index eea78fc7..e078caa0 100644
--- a/src/keepass2android/GroupBaseActivity.cs
+++ b/src/keepass2android/GroupBaseActivity.cs
@@ -745,7 +745,7 @@ namespace keepass2android
 			catch (Exception e)
 			{
 				//don't crash if adding to dirty fails but log the exception:
-				Kp2aLog.Log(e.ToString());
+				Kp2aLog.LogUnexpectedError(e);
 			}
 
 			AppTask = new NullTask();
diff --git a/src/keepass2android/LockCloseActivity.cs b/src/keepass2android/LockCloseActivity.cs
index 83b773be..8864d1f2 100644
--- a/src/keepass2android/LockCloseActivity.cs
+++ b/src/keepass2android/LockCloseActivity.cs
@@ -85,7 +85,7 @@ namespace keepass2android
 				}
 				catch (Exception ex)
 				{
-					Kp2aLog.Log(ex.ToString());
+					Kp2aLog.LogUnexpectedError(ex);
 				}
 				
 			}
diff --git a/src/keepass2android/LockCloseListActivity.cs b/src/keepass2android/LockCloseListActivity.cs
index 8aafde53..b5a4635b 100644
--- a/src/keepass2android/LockCloseListActivity.cs
+++ b/src/keepass2android/LockCloseListActivity.cs
@@ -88,7 +88,7 @@ namespace keepass2android
 			}
 			catch (Exception ex)
 			{
-				Kp2aLog.Log(ex.ToString());
+				Kp2aLog.LogUnexpectedError(ex);
 			}
 
 			base.OnDestroy();
diff --git a/src/keepass2android/LockingClosePreferenceActivity.cs b/src/keepass2android/LockingClosePreferenceActivity.cs
index b9d4e861..eef52df4 100644
--- a/src/keepass2android/LockingClosePreferenceActivity.cs
+++ b/src/keepass2android/LockingClosePreferenceActivity.cs
@@ -56,7 +56,7 @@ namespace keepass2android
 			}
 			catch (Exception ex)
 			{
-				Kp2aLog.Log(ex.ToString());
+				Kp2aLog.LogUnexpectedError(ex);
 			}
 
 			base.OnDestroy();
diff --git a/src/keepass2android/NfcOtpActivity.cs b/src/keepass2android/NfcOtpActivity.cs
index 976bd3ef..7e36a7fc 100644
--- a/src/keepass2android/NfcOtpActivity.cs
+++ b/src/keepass2android/NfcOtpActivity.cs
@@ -87,7 +87,7 @@ namespace keepass2android
 			}
 			catch (Exception e)
 			{
-				Kp2aLog.Log(e.ToString());
+				Kp2aLog.LogUnexpectedError(e);
 				Toast.MakeText(this, "No Yubikey OTP found!", ToastLength.Long).Show();
 				Finish();
 				return;
diff --git a/src/keepass2android/PasswordActivity.cs b/src/keepass2android/PasswordActivity.cs
index 3bbfa812..19ba4797 100644
--- a/src/keepass2android/PasswordActivity.cs
+++ b/src/keepass2android/PasswordActivity.cs
@@ -396,7 +396,7 @@ namespace keepass2android
 						}
 						catch (Exception e)
 						{
-							Kp2aLog.Log(e.ToString());
+							Kp2aLog.LogUnexpectedError(e);
 						}
 						return null;
 					}
@@ -482,7 +482,7 @@ namespace keepass2android
 							}
 							catch (Exception e)
 							{
-								Kp2aLog.Log(e.ToString());
+								Kp2aLog.LogUnexpectedError(e);
 								//retry with saved ioc
 								try
 								{
@@ -494,7 +494,7 @@ namespace keepass2android
 								}
 								catch (Exception e2)
 								{
-									Kp2aLog.Log(e2.ToString());
+									Kp2aLog.LogUnexpectedError(e2);
 								}
 
 							}
@@ -701,6 +701,7 @@ namespace keepass2android
 		private FingerprintDecryption _fingerprintDec;
 		private bool _fingerprintPermissionGranted;
 		private PasswordActivityBroadcastReceiver _intentReceiver;
+		private int _appnameclickCount;
 
 
 		internal class MyActionBarDrawerToggle : ActionBarDrawerToggle
@@ -1002,7 +1003,21 @@ namespace keepass2android
 	        {
                 AppSettingsActivity.Launch(this);
 	        };
-				
+
+			FindViewById(Resource.Id.nav_app_name).Click += (sender, args) =>
+			{
+				_appnameclickCount++;
+				if (_appnameclickCount == 6)
+					Toast.MakeText(this, "Once again and the app will crash.", ToastLength.Long).Show();
+				if (_appnameclickCount == 7)
+				{
+					Xamarin.Insights.Report(new Exception("blabla"), new Dictionary<string, string>() { { "key", "the value"}});
+					throw new Exception("This is an easter egg crash (for testing unhandled exceptions.)");
+				}
+					
+
+			};
+
 	    }
 
 	    private void InitializeToolbar()
@@ -1415,7 +1430,7 @@ namespace keepass2android
 				}
 				catch (Exception e)
 				{
-					Kp2aLog.Log(e.ToString());
+					Kp2aLog.LogUnexpectedError(e);
 					errorMessage = e.Message;
 					return false;
 				}
@@ -1430,7 +1445,7 @@ namespace keepass2android
 				}
 				catch (Exception e)
 				{
-					Kp2aLog.Log(e.ToString());
+					Kp2aLog.LogUnexpectedError(e);
 					errorMessage = GetString(Resource.String.OtpKeyError);
 
 					return false;
@@ -1941,6 +1956,7 @@ namespace keepass2android
 
 					_act.ClearEnteredPassword();
 					_act.BroadcastOpenDatabase();
+					_act.InvalidCompositeKeyCount = 0;
 
 
 					GC.Collect(); // Ensure temporary memory used while loading is collected
@@ -1949,6 +1965,7 @@ namespace keepass2android
 
 				if (Exception is InvalidCompositeKeyException)
 				{
+					_act.InvalidCompositeKeyCount++;
 					if (_act.UsedFingerprintUnlock)
 					{
 						//disable fingerprint unlock if master password changed
@@ -1957,9 +1974,24 @@ namespace keepass2android
 
 						Message = _act.GetString(Resource.String.fingerprint_disabled_wrong_masterkey);
 					}
+					else
+					{
+						if (_act.InvalidCompositeKeyCount > 1)
+						{
+							Message = _act.GetString(Resource.String.RepeatedInvalidCompositeKeyHelp);
+						}
+						else
+						{
+							Message = _act.GetString(Resource.String.FirstInvalidCompositeKeyError);
+						}
+					}
 					
 
 				}
+				if ((Exception != null) && (Exception.Message == KeePassLib.Resources.KLRes.FileCorrupted))
+				{
+					Message = _act.GetString(Resource.String.CorruptDatabaseHelp);
+				}
 				
 				
 				if ((Message != null) && (Message.Length > 150)) //show long messages as dialog
@@ -1992,6 +2024,11 @@ namespace keepass2android
 			}
 		}
 
+		public int InvalidCompositeKeyCount
+		{
+			get; set;
+		}
+
 		private void BroadcastOpenDatabase()
 		{
 			App.Kp2a.BroadcastDatabaseAction(this, Strings.ActionOpenDatabase);
@@ -2039,7 +2076,7 @@ namespace keepass2android
 				}
 				catch (Exception e)
 				{
-					Kp2aLog.Log(e.Message);
+					Kp2aLog.LogUnexpectedError(e);
 
 					Toast.MakeText(_act, _act.GetString(Resource.String.ErrorUpdatingOtpAuxFile) + " " + e.Message,
 								   ToastLength.Long).Show();
@@ -2063,7 +2100,6 @@ namespace keepass2android
 				switch (intent.Action)
 				{
 					case Intent.ActionScreenOff:
-						Kp2aLog.Log("bla");
 						_activity.OnScreenLocked();
 						break;
 				}
diff --git a/src/keepass2android/QueryCredentialsActivity.cs b/src/keepass2android/QueryCredentialsActivity.cs
index 295b144b..11abbc84 100644
--- a/src/keepass2android/QueryCredentialsActivity.cs
+++ b/src/keepass2android/QueryCredentialsActivity.cs
@@ -101,7 +101,7 @@ namespace keepass2android
 			}
 			catch (Exception e)
 			{
-				Kp2aLog.Log(e.ToString());
+				Kp2aLog.LogUnexpectedError(e);
 			}
 			if (String.IsNullOrEmpty(_requestedUrl))
 				Toast.MakeText(this, GetString(Resource.String.query_credentials, new Java.Lang.Object[] {pluginDisplayName}), ToastLength.Long).Show();
@@ -156,7 +156,7 @@ namespace keepass2android
 					//double check we really have the permission
 					if (!new PluginDatabase(this).HasAcceptedScope(_pluginPackage, _requiredScope))
 					{
-						Kp2aLog.Log("Ohoh! Scope not available, shouldn't get here. Malicious app somewhere?");
+						Kp2aLog.LogUnexpectedError(new Exception("Ohoh! Scope not available, shouldn't get here. Malicious app somewhere?"));
 						SetResult(Result.Canceled);
 						Finish();
 						return;
diff --git a/src/keepass2android/QuickUnlock.cs b/src/keepass2android/QuickUnlock.cs
index e02fae8a..159080ab 100644
--- a/src/keepass2android/QuickUnlock.cs
+++ b/src/keepass2android/QuickUnlock.cs
@@ -340,7 +340,7 @@ namespace keepass2android
 			}
 			catch (Exception e)
 			{
-				Kp2aLog.Log(e.ToString());
+				Kp2aLog.LogUnexpectedError(e);
 			}
 			
 		}
diff --git a/src/keepass2android/Resources/layout/password.xml b/src/keepass2android/Resources/layout/password.xml
index 625d16a4..7808d56c 100644
--- a/src/keepass2android/Resources/layout/password.xml
+++ b/src/keepass2android/Resources/layout/password.xml
@@ -398,7 +398,8 @@
                     android:layout_height="match_parent"
                     android:scaleType="centerCrop"
                     android:src="@drawable/navheader_bg" />
-                <TextView
+              <TextView
+                android:id="@+id/nav_app_name"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:text="@string/app_name"
diff --git a/src/keepass2android/Resources/values/strings.xml b/src/keepass2android/Resources/values/strings.xml
index ca52b7f2..a855dbec 100644
--- a/src/keepass2android/Resources/values/strings.xml
+++ b/src/keepass2android/Resources/values/strings.xml
@@ -613,6 +613,25 @@
 	<string name="Continue">Continue</string>
 	<string name="NoFilenameWarning">The URI you have entered does not look like a filename. Are you sure this is a valid file?</string>
 
+  <string name="FirstInvalidCompositeKeyError">Invalid composite key! Please try again.</string>
+  <string name="RepeatedInvalidCompositeKeyHelp">Invalid composite key! Please try the following steps to unlock your database:\n
+  * Make sure you have entered the correct password. Use the eye icon to reveal the entered password.\n
+  * Make sure you have selected the correct password type. Make sure this matches the type used when creating the database.\n
+  * Make sure you have selected the correct database file.</string>
+  <string name="CorruptDatabaseHelp">
+    File is corrupted. \n
+    Here are some hints which might help to diagnose the issue:\n
+    * If you copied the file over USB (MTP-Mode), please try again with tools like MyPhoneExplorer. MTP truncates files in certain cases.\n
+    * If you cannot open the file from the same location on your PC, it is very likely that the file is actually corrupted. Please use a database backup then. If you assume that Keepass2Android has corrupted the file, please contact support.\n
+    * If you can still open the file on your PC, please contact support. You might try to save it with different settings (e.g. unzipped) on the PC and retry to open in Keepass2Android.</string>
+
+  <string name="ErrorReportTitle">Keepass2Android: An error occurred.</string>
+  <string name="ErrorReportText">An unexpected error occurred. Please help us fix this by enabling error reports.</string>
+  <string name="ErrorReportPromise">Error reports will never contain any contents of your database or master password. You can disable them in the application settings.</string>
+  <string name="ErrorReportEnable">Enable</string>
+  <string name="ErrorReportDisable">Disable</string>
+  
+  
   <string name="ChangeLog_0_9_8c">
     Version 0.9.8c\n
     * Fix for SSL vulnerability in Microsoft Live SDK (used when accessing files via OneDrive)\n
diff --git a/src/keepass2android/Totp/TrayTotpPluginAdapter.cs b/src/keepass2android/Totp/TrayTotpPluginAdapter.cs
index c73435e0..f3ace0cb 100644
--- a/src/keepass2android/Totp/TrayTotpPluginAdapter.cs
+++ b/src/keepass2android/Totp/TrayTotpPluginAdapter.cs
@@ -168,7 +168,7 @@ namespace PluginTOTP
 				}
 				catch (Exception e)
 				{
-					Kp2aLog.Log(e.ToString());
+					Kp2aLog.LogUnexpectedError(e);
 					//ignore, it's only a warning
 				}
 				
diff --git a/src/keepass2android/Utils/ActivityDesign.cs b/src/keepass2android/Utils/ActivityDesign.cs
index 2da11687..fe6e1353 100644
--- a/src/keepass2android/Utils/ActivityDesign.cs
+++ b/src/keepass2android/Utils/ActivityDesign.cs
@@ -30,7 +30,7 @@ namespace keepass2android
 			}
 			catch (Exception e)
 			{
-				Kp2aLog.Log(e.ToString());
+				Kp2aLog.LogUnexpectedError(e); 
 			}
 			
 		}
diff --git a/src/keepass2android/Utils/LoadingDialog.cs b/src/keepass2android/Utils/LoadingDialog.cs
index 274557b0..b832b487 100644
--- a/src/keepass2android/Utils/LoadingDialog.cs
+++ b/src/keepass2android/Utils/LoadingDialog.cs
@@ -86,7 +86,7 @@ namespace keepass2android.Utils
 						}
 						catch (Exception t)
 						{
-							Kp2aLog.Log(t.ToString());
+							Kp2aLog.LogUnexpectedError(t);
 						}
 					}
 
@@ -121,7 +121,7 @@ namespace keepass2android.Utils
 			}
 			catch (Exception e)
 			{
-				Kp2aLog.Log(e.ToString());
+				Kp2aLog.LogUnexpectedError(e);
 			}
 		}
 
diff --git a/src/keepass2android/Utils/Util.cs b/src/keepass2android/Utils/Util.cs
index fe6ca4e0..31a8dc3f 100644
--- a/src/keepass2android/Utils/Util.cs
+++ b/src/keepass2android/Utils/Util.cs
@@ -276,7 +276,7 @@ namespace keepass2android
 			}
 			catch (Exception e)
 			{
-				Kp2aLog.Log(e.ToString());
+				Kp2aLog.LogUnexpectedError(e);
 			}
 
 			String filename = data.Data.Path;
diff --git a/src/keepass2android/addons/OtpKeyProv/OtpInfo.cs b/src/keepass2android/addons/OtpKeyProv/OtpInfo.cs
index afc45b7c..de8667d5 100644
--- a/src/keepass2android/addons/OtpKeyProv/OtpInfo.cs
+++ b/src/keepass2android/addons/OtpKeyProv/OtpInfo.cs
@@ -178,7 +178,7 @@ namespace OtpKeyProv
 			}
 			catch (Exception e)
 			{
-				Kp2aLog.Log(e.ToString());
+				Kp2aLog.LogUnexpectedError(e);
 			}
 			finally
 			{
diff --git a/src/keepass2android/app/App.cs b/src/keepass2android/app/App.cs
index a4ad196b..02a53b21 100644
--- a/src/keepass2android/app/App.cs
+++ b/src/keepass2android/app/App.cs
@@ -31,6 +31,7 @@ using KeePassLib.Cryptography.Cipher;
 using KeePassLib.Keys;
 using KeePassLib.Serialization;
 using Android.Preferences;
+using Android.Support.V4.App;
 #if !EXCLUDE_TWOFISH
 using TwofishCipher;
 #endif
@@ -365,7 +366,7 @@ namespace keepass2android
 						}
 						catch (Exception e)
 						{
-							Kp2aLog.Log(e.ToString());
+							Kp2aLog.LogUnexpectedError(e);
 						}
 	
 					}
@@ -410,7 +411,7 @@ namespace keepass2android
 				}
 				catch (Exception e)
 				{
-					Kp2aLog.Log(e.ToString());
+					Kp2aLog.LogUnexpectedError(e);
 				}
 				
 			}
@@ -566,7 +567,7 @@ namespace keepass2android
 		}
 
 
-		enum ValidationMode
+		public enum ValidationMode
 		{
 			Ignore, Warn, Error
 		}
@@ -754,6 +755,9 @@ namespace keepass2android
 #endif
 #endif
 	public class App : Application {
+		public const string Kp2AActionDisableerrorreport = "kp2a.action.DisableErrorReport";
+		public const string Kp2AActionEnableerrorreport = "kp2a.action.EnableErrorReport";
+		public const string PrefErrorreportmode = "pref_ErrorReportMode";
 
 		public App (IntPtr javaReference, JniHandleOwnership transfer)
 			: base(javaReference, transfer)
@@ -761,6 +765,13 @@ namespace keepass2android
 		}
 
         public static readonly Kp2aApp Kp2a = new Kp2aApp();
+
+		public enum ErrorReportMode
+		{
+			AskAgain=0,
+			Disabled=1,
+			Enabled=2
+		}
         
 		public override void OnCreate() {
 			base.OnCreate();
@@ -769,12 +780,50 @@ namespace keepass2android
 
             Kp2a.OnCreate(this);
 			AndroidEnvironment.UnhandledExceptionRaiser += MyApp_UnhandledExceptionHandler;
+			Kp2aLog.OnUnexpectedError += (sender, exception) =>
+			{
+				var currentErrorReportMode = GetErrorReportMode();
+				if (currentErrorReportMode == ErrorReportMode.AskAgain)
+				{
+					NotificationCompat.Builder builder = new NotificationCompat.Builder(ApplicationContext);
+					var notification = 
+						builder.SetContentTitle(Resources.GetString(Resource.String.ErrorReportTitle))
+						.SetContentText(Resources.GetString(Resource.String.ErrorReportText) + " " +
+						                Resources.GetString(Resource.String.ErrorReportPromise))
+						.AddAction(Android.Resource.Drawable.IcMenuCloseClearCancel, Resource.String.ErrorReportDisable,
+							PendingIntent.GetBroadcast(ApplicationContext, 0, new Intent(Kp2AActionDisableerrorreport),
+								PendingIntentFlags.CancelCurrent))
+						.AddAction(Android.Resource.Drawable.IcMenuCloseClearCancel, Resource.String.ErrorReportEnable,
+							PendingIntent.GetBroadcast(ApplicationContext, 0, new Intent(Kp2AActionEnableerrorreport),
+								PendingIntentFlags.CancelCurrent))
+						.Build();
+					((NotificationManager) GetSystemService(NotificationService)).Notify(18919, notification);
+
+					var filter = new IntentFilter();
+					filter.AddAction(Kp2AActionDisableerrorreport);
+					filter.AddAction(Kp2AActionEnableerrorreport);
+					RegisterReceiver(new ErrorReportSettingsReceiver(), filter);
+				}
+			};
+			Xamarin.Insights.Initialize("fed2b273ed2a964d0ba6acc3743e68f7a04da957", ApplicationContext);
+			Xamarin.Insights.DisableExceptionCatching = true;
+			var errorReportMode = GetErrorReportMode();
+			Xamarin.Insights.DisableDataTransmission = errorReportMode != ErrorReportMode.Enabled;
+		}
+
+		private ErrorReportMode GetErrorReportMode()
+		{
+			ErrorReportMode errorReportMode;
+			Enum.TryParse(PreferenceManager.GetDefaultSharedPreferences(this.ApplicationContext)
+				.GetString(PrefErrorreportmode, ErrorReportMode.AskAgain.ToString()), out errorReportMode);
+			return errorReportMode;
 		}
 
 
 		void MyApp_UnhandledExceptionHandler(object sender, RaiseThrowableEventArgs e)
 		{
-			Kp2aLog.Log(e.Exception.ToString());
+			Kp2aLog.LogUnexpectedError(e.Exception);
+			Xamarin.Insights.Save();
 			// Do your error handling here.
 			throw e.Exception;
 		}
@@ -793,5 +842,24 @@ namespace keepass2android
 
         
     }
+
+	public class ErrorReportSettingsReceiver : BroadcastReceiver
+	{
+		public override void OnReceive(Context context, Intent intent)
+		{
+			if (intent.Action == App.Kp2AActionDisableerrorreport)
+			{
+				PreferenceManager.GetDefaultSharedPreferences(context)
+					.Edit()
+					.PutString(App.PrefErrorreportmode, App.ErrorReportMode.Disabled.ToString());
+			}
+			if (intent.Action == App.Kp2AActionEnableerrorreport)
+			{
+				PreferenceManager.GetDefaultSharedPreferences(context)
+					.Edit()
+					.PutString(App.PrefErrorreportmode, App.ErrorReportMode.Enabled.ToString());
+			}
+		}
+	}
 }
 
diff --git a/src/keepass2android/fileselect/FileChooserFileProvider.cs b/src/keepass2android/fileselect/FileChooserFileProvider.cs
index be6e22e3..20db0ca1 100644
--- a/src/keepass2android/fileselect/FileChooserFileProvider.cs
+++ b/src/keepass2android/fileselect/FileChooserFileProvider.cs
@@ -38,7 +38,7 @@ namespace keepass2android
 			}
 			catch (Exception e)
 			{
-				Kp2aLog.Log(e.ToString());
+				Kp2aLog.LogUnexpectedError(e);
 				return false;
 			}
 		}
@@ -57,7 +57,7 @@ namespace keepass2android
 			}
 			catch(Exception e)
 			{
-				Kp2aLog.Log(e.ToString());
+				Kp2aLog.LogUnexpectedError(e);
 				return false;
 			}
 		}
@@ -71,7 +71,7 @@ namespace keepass2android
 			}
 			catch (Exception e)
 			{
-				Kp2aLog.Log(e.ToString());
+				Kp2aLog.LogUnexpectedError(e);
 				return null;
 			}
 		}
@@ -92,7 +92,7 @@ namespace keepass2android
 			}
 			catch (Exception e)
 			{
-				Kp2aLog.Log(e.ToString());
+				Kp2aLog.LogUnexpectedError(e);
 			}
 		}
 
diff --git a/src/keepass2android/icons/DrawableFactory.cs b/src/keepass2android/icons/DrawableFactory.cs
index 00abf73e..78085c50 100644
--- a/src/keepass2android/icons/DrawableFactory.cs
+++ b/src/keepass2android/icons/DrawableFactory.cs
@@ -15,6 +15,7 @@ This file is part of Keepass2Android, Copyright 2013 Philipp Crocoll. This file
   along with Keepass2Android.  If not, see <http://www.gnu.org/licenses/>.
   */
 
+using System;
 using System.Collections.Generic;
 using Android.App;
 using Android.Content;
@@ -59,7 +60,7 @@ private static Drawable _blank;
 			}
 				
 			else
-				Kp2aLog.Log("icon not found : " + icon);
+				Kp2aLog.LogUnexpectedError(new Exception("icon not found : " + icon));
 		}
 			
 		public Drawable GetIconDrawable (Context context, PwDatabase db, PwIcon icon, PwUuid customIconId, bool forGroup)
@@ -113,7 +114,7 @@ private static Drawable _blank;
 				}
 				catch (System.Exception e)
 				{
-					Kp2aLog.Log(e.ToString());
+					Kp2aLog.LogUnexpectedError(e);
 					draw = context.Resources.GetDrawable(Resource.Drawable.ic99_blank);
 				}
 				
diff --git a/src/keepass2android/keepass2android.csproj b/src/keepass2android/keepass2android.csproj
index 2ea22d28..d1dfb0da 100644
--- a/src/keepass2android/keepass2android.csproj
+++ b/src/keepass2android/keepass2android.csproj
@@ -19,6 +19,7 @@
     <MandroidI18n />
     <JavaMaximumHeapSize>1G</JavaMaximumHeapSize>
     <AndroidUseLatestPlatformSdk>False</AndroidUseLatestPlatformSdk>
+    <NuGetPackageImportStamp>9e78b013</NuGetPackageImportStamp>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>True</DebugSymbols>
@@ -110,6 +111,9 @@
       <HintPath>..\packages\Xamarin.GooglePlayServices.Drive.27.0.0.0\lib\MonoAndroid41\Xamarin.GooglePlayServices.Drive.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="Xamarin.Insights">
+      <HintPath>..\packages\Xamarin.Insights.1.11.3\lib\MonoAndroid10\Xamarin.Insights.dll</HintPath>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="addons\OtpKeyProv\EncodingUtil.cs" />
@@ -1666,4 +1670,11 @@
     <AndroidResource Include="Resources\drawable-mdpi\ic_fp_40px.png" />
   </ItemGroup>
   <Import Project="$(MSBuildExtensionsPath)\Xamarin\Android\Xamarin.Android.CSharp.targets" />
+  <Import Project="..\packages\Xamarin.Insights.1.11.3\build\MonoAndroid10\Xamarin.Insights.targets" Condition="Exists('..\packages\Xamarin.Insights.1.11.3\build\MonoAndroid10\Xamarin.Insights.targets')" />
+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>Dieses Projekt verweist auf mindestens ein NuGet-Paket, das auf diesem Computer fehlt. Aktivieren Sie die Wiederherstellung von NuGet-Paketen, um die fehlende Datei herunterzuladen. Weitere Informationen finden Sie unter "http://go.microsoft.com/fwlink/?LinkID=322105". Die fehlende Datei ist "{0}".</ErrorText>
+    </PropertyGroup>
+    <Error Condition="!Exists('..\packages\Xamarin.Insights.1.11.3\build\MonoAndroid10\Xamarin.Insights.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Xamarin.Insights.1.11.3\build\MonoAndroid10\Xamarin.Insights.targets'))" />
+  </Target>
 </Project>
\ No newline at end of file
diff --git a/src/keepass2android/packages.config b/src/keepass2android/packages.config
index 15f24723..801b0a8f 100644
--- a/src/keepass2android/packages.config
+++ b/src/keepass2android/packages.config
@@ -7,4 +7,5 @@
   <package id="Xamarin.GooglePlayServices.Base" version="27.0.0.0" targetFramework="MonoAndroid50" />
   <package id="Xamarin.GooglePlayServices.Basement" version="27.0.0.0" targetFramework="MonoAndroid50" />
   <package id="Xamarin.GooglePlayServices.Drive" version="27.0.0.0" targetFramework="MonoAndroid50" />
+  <package id="Xamarin.Insights" version="1.11.3" targetFramework="MonoAndroid60" />
 </packages>
\ No newline at end of file
diff --git a/src/keepass2android/search/SearchProvider.cs b/src/keepass2android/search/SearchProvider.cs
index 8aca97e8..56c2b367 100644
--- a/src/keepass2android/search/SearchProvider.cs
+++ b/src/keepass2android/search/SearchProvider.cs
@@ -87,7 +87,7 @@ namespace keepass2android.search
 							}
 							catch (Exception e)
 							{
-								Kp2aLog.Log("Failed to search for suggestions: " + e.Message);
+								Kp2aLog.LogUnexpectedError(new Exception("Failed to search for suggestions", e));
 							}
 						}
 						break;
diff --git a/src/keepass2android/search/SearchResults.cs b/src/keepass2android/search/SearchResults.cs
index 3ea200af..7bfd6841 100644
--- a/src/keepass2android/search/SearchResults.cs
+++ b/src/keepass2android/search/SearchResults.cs
@@ -100,7 +100,7 @@ namespace keepass2android.search
 			try {
 				Group = App.Kp2a.GetDb().Search (searchParams, null);
 			} catch (Exception e) {
-				Kp2aLog.Log(e.ToString());
+				Kp2aLog.LogUnexpectedError(e);
 				Toast.MakeText(this,e.Message, ToastLength.Long).Show();
 				Finish();
 				return;
diff --git a/src/keepass2android/settings/DatabaseSettingsActivity.cs b/src/keepass2android/settings/DatabaseSettingsActivity.cs
index e37af717..ef47d230 100644
--- a/src/keepass2android/settings/DatabaseSettingsActivity.cs
+++ b/src/keepass2android/settings/DatabaseSettingsActivity.cs
@@ -385,7 +385,7 @@ namespace keepass2android
             }
             catch (Exception ex)
             {
-                Kp2aLog.Log(ex.ToString());
+				Kp2aLog.LogUnexpectedError(ex);
             }
 
             
@@ -428,7 +428,7 @@ namespace keepass2android
             }
             catch (Exception ex)
             {
-                Kp2aLog.Log(ex.ToString());
+				Kp2aLog.LogUnexpectedError(ex);
             }
 
             
@@ -553,7 +553,7 @@ namespace keepass2android
             }
             catch (Exception ex)
             {
-                Kp2aLog.Log(ex.ToString());
+				Kp2aLog.LogUnexpectedError(ex);
             }
         }
 
@@ -585,7 +585,7 @@ namespace keepass2android
                     }
                     catch (Exception ex)
                     {
-                        Kp2aLog.Log(ex.ToString());
+						Kp2aLog.LogUnexpectedError(ex);
                         Toast.MakeText(Application.Context, ex.Message, ToastLength.Long).Show();
                     }
                 }