Internal error while deleting NPM feed

We get an internal error when deleting a NPM feed from the UI.

The Windows event log shows this:

    Exception type: SqlException 
    Exception message: 547`16`0`Feeds_DeleteFeed`168`The DELETE statement conflicted with the REFERENCE constraint "FK__ScheduledTasks__NpmConnectors". The conflict occurred in database "ProGet", table "dbo.ScheduledTasks", column 'NpmConnector_Id'.
   at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
   at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
   at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString)
   at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, SqlDataReader ds)
   at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite)
   at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean asyncWrite)
   at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
   at Inedo.Data.SqlServerDataFactory.ExecuteNonQuery(String storedProcName, IList`1 parameters)
   at Inedo.ProGet.WebApplication.Pages.Administration.Feeds.Management.DeleteFeedPage.<>c__DisplayClass2.<CreateChildControls>b__1(Object s, EventArgs e)
   at Inedo.Web.Controls.ButtonLinks.PostBackButtonLink.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Product: ProGet
Version: 3.7.3

We'll fix this in ProGet 3.7.4. For now, you can mark the feed as inactive to disable it. If you need to delete it, I can send you a patch to fix your installation.