Then try another version of avisynth: Avisynth 2.6 MT (32 bit).
1. Download package avisynth_20150220.7z from this link: https://www.dropbox.com/s/dckxoowjlzwku … 0150220.7z
2. Or place avisyth.dll file into 32 bit player's folder.
3. Open player and check if the error still here?