When did you start experiencing this issue with the client? Try restarting your PC and starting Rumble Fighter through the RuF folder as admin. The following programs are known to conflict with Rumble Fighter to cause the GameGuard Errors: -Game tracking services (XFire, Raptr, and more) -Other Games (League of Legends, Steam games, and more) -VLC, MPC, any video player -Razer Syapse or any macro assigning software -Joy2key, X-Pad, or any controller mapping software -X-Trap, HackShield, or any other anti-hack software -Emulator software (VMWare) When playing Rumble Fighter, please shut these programs off.