Common language Runtime Debugging services, when playing Gunz online.

Hi guys

I have recently got gunz online to work again BUT

every 2 times it seems i go on the game or if i exit it and go back on an error log comes up from windows "common language Runtime Debugging services". I says that an application has generated an exception that could not be handled and gives me the option to click OK to terminate the application or CANCEL to debug the application. I have no idea what this is or even what it is about. Help would be needed. It seems the only way i can get the game to work again is to restart my PC but surely there must be a way of fixing it.

I would love some help
Cheers!