Error JsReporting for windows server 2008 r2 spk 1, help me?

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Good Morning,
I am help a jsReporting for windows server 2008 r2 spk 1, is error :
An unhandled exception occurred while processing the request.
Win32Exception: The specified executable is not a valid application for this OS platform.

Win32Exception: The specified executable is not a valid application for this OS platform.
System.Diagnostics.Process.StartWithCreateProcess(ProcessStartInfo startInfo)
System.Diagnostics.Process.Start()
jsreport.Local.Internal.BinaryProcess+<InnerExecute>d__18.MoveNext()
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
System.Runtime.CompilerServices.ConfiguredTaskAwaitable+ConfiguredTaskAwaiter.GetResult()
jsreport.Local.Internal.BinaryProcess+<ExecuteExe>d__17.MoveNext()
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
System.Runtime.CompilerServices.ConfiguredTaskAwaitable+ConfiguredTaskAwaiter.GetResult()
jsreport.Local.Internal.LocalUtilityReportingService+<RenderAsync>d__10.MoveNext()