Someone was in the process of hacking the game (they were flying around in the air, etc.) when I killed them. At which point, a profane message displayed on my screen and my level dropped from like 35 (prestige 2) to level 1 (prestige 2). And now, I can no longer level up. After every round I play, the amount of XP I need to level up keeps growing infinitely. How can I get this fixed?