Each data refresh gives different data results

I enabled trace and I found these 3 errors: Error 1: EvaluationContainerMain/ExceptionHandler/HandleException,"Exception: ExceptionType: System.Threading.AbandonedMutexException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 Message: The wait completed due to an abandoned mutex. StackTrace: at System.Threading.WaitHandle.InternalWaitOne(SafeHandle waitableSafeHandle, Int64 millisecondsTimeout, Boolean hasThreadAffinity, Boolean exitContext) at Microsoft.Mashup.Container.EvaluationContainerMain.WaitForParentExitThread(Object state) at Microsoft.Mashup.Evaluator.SafeThread2.<>c__DisplayClass15.b__14(Object o)" Error 2: EvaluationContainerMain/ExceptionHandler/HandleException,"Exception: ExceptionType: System.IO.EndOfStreamException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 Message: Unable to read beyond the end of the stream. StackTrace: at System.IO.BinaryReader.FillBuffer(Int32 numBytes) at System.IO.BinaryReader.ReadInt32 () at Microsoft.Mashup.Evaluator.StreamMessenger.Read () at Microsoft.Mashup.Evaluator.ChannelMessenger.Read(MessageChannel channel) at Microsoft.Mashup.Evaluator.ChannelMessenger.MessageChannel.Read () at Microsoft.Mashup.Evaluator.Interface.IMessengerExtensions.WaitFor[T](IMessenger messenger, Action`2 handler) at Microsoft.Mashup.Evaluator.RemoteServiceEnvironment.CreateServiceProxies(IMessenger messenger, IRemoteServiceProxy[]& services) at Microsoft.Mashup.Evaluator.EvaluationHost.Run () at Microsoft.Mashup.Container.EvaluationContainerMain.Run(Object args) at Microsoft.Mashup.Evaluator.SafeThread2.<>c__DisplayClass15.b__14(Object o)" Error 3: EvaluationContainerMain/ExceptionHandler/HandleException,"Exception: ExceptionType: System.Threading.AbandonedMutexException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 Message: The wait completed due to an abandoned mutex. Stac