Studio Migration Utility - Object reference not set to an instance of an object

I added the Plugin "Studio Migration Utility" on my Trados Server 2015 (windows Server 2008), because i wanna migrate Trados. 

I want to create a Windows Server 2016 an install Trados 2017. So I thik i need these plugin to save all data.

 

Following Error Message:

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<SDLErrorDetails time="24.03.2017 16:17:12">
<ErrorMessage>Object reference not set to an instance of an object.</ErrorMessage>
<Exception>
<Type>System.NullReferenceException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</Type>
<HelpLink />
<Source>Sdl.Community.StudioMigrationUtility</Source>
<HResult>-2147467261</HResult>
<StackTrace><![CDATA[ at Sdl.Community.StudioMigrationUtility.Services.StudioVersionService.CreateStudioVersion(RegistryKey studioKey, String version, String publicVersion)
at Sdl.Community.StudioMigrationUtility.Services.StudioVersionService.FindAndCreateStudioVersion(String registryPath, String studioVersion, String studioPublicVersion)
at Sdl.Community.StudioMigrationUtility.Services.StudioVersionService.Initialize()
at Sdl.Community.StudioMigrationUtility.Services.StudioVersionService..ctor()
at Sdl.Community.StudioMigrationUtility.Integration.StudioMigrationUtilityViewPartAction.Execute()
at Sdl.Desktop.IntegrationApi.AbstractAction.Sdl.Desktop.IntegrationApi.Extensions.Internal.IAction.Execute()
at Sdl.Desktop.IntegrationApi.Internal.Adaptors.InternalActionAdaptor.Execute()
at Sdl.Desktop.Platform.Implementation.CommandBars.ActionService.<>c__DisplayClass3.<ExecuteAction>b__2()
at Sdl.Desktop.Platform.Implementation.Services.Log.Resources(Object message, Action action)
at Sdl.Desktop.Platform.Implementation.CommandBars.ActionService.ExecuteAction(IAction action, ActionOrigin origin, Boolean allowToggle)
at Sdl.Desktop.Platform.WinForms.IgCommandBarAction.Execute()
at Sdl.Desktop.Platform.WinForms.IgCommandBarAction._lazyButtonTool_ToolClick(Object sender, ToolClickEventArgs e)
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

 

I tried to repair trados via Windows programs, but it doesnt help.