SweetFX bugs, Corrupted archives. Need help!

Hello guys, I’ve been wondering around on the game files and it seems that I accidently corrupted some type of document on the “Computer/LocalDisk/Program Archives(x86)/Steam/Steamapps/Commom/BorderlandsPreSequel/Binaries/Win32”. Also, I edited the willowgame files on “my documents” folder too, gotta check if those are causing the problem aswell. I’ve testing a type of file that changes the way that DirectX works ingame/ makes it look better. After verifying integrity of game cache, deleting the whole file, etc, My game is still crashing after the 2K logo intro movie. Anyone had the same problem? I’ll leave a link to the error printscreen. I’d appreciate any form of help. Thanks.

http://imgur.com/OrIHG93