I keep getting these errors when I import my avs script

-[Error] [7/4/2013 8:35:54 PM] Exception message: Object reference not set to an instance of an object.
-[NoImage] at MeGUI.MediaInfoFile.CorrectSourceInformation(MediaInfo& oInfo, String strFile, LogItem infoLog, Int32 iPGCNumber)
-[NoImage] at MeGUI.MediaInfoFile.GetSourceInformation(String file, LogItem oLog, Int32 iPGCNumber)
-[Error] [7/4/2013 8:35:54 PM] Stacktrace
-[Error] [7/4/2013 8:35:54 PM] Inner exception: null
--[Error] [7/4/2013 8:35:54 PM] MediaInfo - Unhandled Error
-[Error] Unhandled error