StaxRip 2.0.7.1 FrameServer error

DllNotFoundException (2.0.7.1)

Unable to load DLL 'FrameServer': The specified module could not be found. (Exception from HRESULT: 0x8007007E)

System.DllNotFoundException: Unable to load DLL 'FrameServer': The specified module could not be found. (Exception from HRESULT: 0x8007007E)
   at StaxRip.FrameServer.CreateAviSynthServer()
   at StaxRip.FrameServer..ctor(String path) in D:\Projekte\VB\staxrip\General\FrameServer.vb:line 12
   at StaxRip.VideoScript.Synchronize(Boolean convertToRGB, Boolean comparePath, Boolean flipVertical) in D:\Projekte\VB\staxrip\General\VideoScript.vb:line 246
   at StaxRip.VideoScript.GetInfo() in D:\Projekte\VB\staxrip\General\VideoScript.vb:line 437
   at StaxRip.VideoScript.GetFramerate() in D:\Projekte\VB\staxrip\General\VideoScript.vb:line 432
   at StaxRip.MainForm.ModifyFilters() in D:\Projekte\VB\staxrip\Forms\MainForm.vb:line 2263
   at StaxRip.MainForm.OpenVideoSourceFiles(IEnumerable`1 files, Boolean isEncoding) in D:\Projekte\VB\staxrip\Forms\MainForm.vb:line 1981