Thanks for the effort however I managed to solve the problem.
Apparently OSX now likes to lock all my media files.
Filebot cannot rename locked files and was thus giving me the error.
I simply unlocked the files and was able to rename my media without a problem.

I'm on a Mac run ng snow leopard. All of a sudden filebot is showing an ioexception error when trying to rename files. It says "moving" which it has never done Before and then fails. I don't want to move any files just preserve the path and rename the files. Any help is appreciated.