Well I can't see the picture.... but how many bullets are you putting into the hack. Because your computers memory might not be able to handle "99" bullets and it crashes the game. So just put the hack at a smaller number. That's my guess at the problem. OR it could be that you held a grenade, The thread with the hack had said that you can't use your knife while using this hack, but I crashed a couple times when using the grenade so I just removed my grenade and changed my knife Hotkey to avoid taking them out. Keep in mind it could be both at the same time.