Red Orchestra 2 Crash Problem

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Hello everyone I need some help with this game. Every time i try to join a realism match the game crashes. I already installed punkbuster and did all that stuff. I als deleted some things that a video told me that i didnt need. But the game still crashes so can anyone pls help me and it will really be appreciated.

 

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I also forgot to put that i downloaded the game when it was free in april so maybe this could be the problem.