Crash in file menu

[mohawkpl]

Hello, i am an advanced Wings3D user, i have been creating models for a game called Mount and Blade for about 2 years now and i have not yet seen such a strange bug. Everything works fine except the file menu. It crashed on import, export, save, everything. What ever i click it gives me a crash with erl.exe still running in the background. I tried using multiple versions, i tried reinsalling but nothing worked. I never had such a problem with the program, it is rather strange and it just happened out of no where, i need to continue my work ASAP so please, if you know the answer i would be very grateful if you shared it with me, thanks.

This is the crash dump:

http://pastebin.com/NfQj7dLk