Avisynth open failure Evaluate System exception

Hello Whiz,
I think I have a problem with Virtual Dub, but I am not sure. When I try to open a script in Virtual Dub or WMP, I ended up with an error message. I get this error only after some time. For your information, I have Avisynth 2.5 version, DGMPGDec 1.5 version. Is any problem with the plug-in? Help me to fix this error. Please guide me to solution. Thanks.

Avisynth open failure: Evaluate: System exception – Access Violation (H:Taare Zameen parTaareZameenpar.avs, line 1)
