thats not an awful lotta information ya gave us there, m8
:-\
try & be mroe specific - like, try & clear the addons folder from ALL unofficial addons.
The add the BAS stuff (and only this)... ONE BY ONE (prime files first off course),
then see which one is giving you the craps, and be sure that you dont have
a home-tweaked version installed, only use original pbo files.
And once they all work, then you can change stuff if needed (mostly it isnt).