I just downloaded UmbracoContour_1.1.13.2.zip and tried to install it to Umbraco 4.8.1 and I got following errors

he INSERT statement conflicted with the FOREIGN KEY constraint "FK_umbracoUser2app_umbracoApp". The conflict occurred in database "GRS_Infosite_DEV", table "dbo.umbracoApp", column 'appAlias'.

The statement has been terminated.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: System.Data.SqlClient.SqlException: The INSERT statement conflicted with the FOREIGN KEY constraint "FK_umbracoUser2app_umbracoApp". The conflict occurred in database "GRS_Infosite_DEV", table "dbo.umbracoApp", column 'appAlias'.

The statement has been terminated.

Source Error: 

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace: 

[SqlException (0x80131904): The INSERT statement conflicted with the FOREIGN KEY constraint "FK_umbracoUser2app_umbracoApp". The conflict occurred in database "GRS_Infosite_DEV", table "dbo.umbracoApp", column 'appAlias'.

The statement has been terminated.]

   System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) +404

   System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning() +412

   System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +1363

   System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) +6368941

   System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async) +6370642

   System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) +538

   System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe) +689

   System.Data.SqlClient.SqlCommand.ExecuteNonQuery() +327

   Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteNonQuery(String connectionString, CommandType commandType, String commandText, SqlParameter[] commandParameters) +167

   umbraco.DataLayer.SqlHelper`1.ExecuteNonQuery(String commandText, IParameter[] parameters) +150

[SqlHelperException: Umbraco Exception (DataLayer): SQL helper exception in ExecuteNonQuery]

   umbraco.DataLayer.SqlHelper`1.ExecuteNonQuery(String commandText, IParameter[] parameters) +261

   umbraco.BusinessLogic.User.addApplication(String AppAlias) +229

   Umbraco.Forms.UI.Usercontrols.Installer.Page_Load(Object sender, EventArgs e) +3665

   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +25

   System.Web.UI.Control.LoadRecursive() +71

   System.Web.UI.Control.LoadRecursive() +190

   System.Web.UI.Control.LoadRecursive() +190

   System.Web.UI.Control.LoadRecursive() +190

   System.Web.UI.Control.LoadRecursive() +190

   System.Web.UI.Control.LoadRecursive() +190

   System.Web.UI.Control.LoadRecursive() +190

   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3064