Kronoss

Hey there, I ve noot been played BF2 for a while because I was in my vacations, today just came back, try to connect to a server but after 10- 5 secs PB auto-kicks me with an error "Violation (AIMBOT) #50093" I ve never used any hacks of any game that ive got (BF2, BF2142, CoD4), then I just decited to check my GUID in pbbans, and my GUID is not in the MBI, so I dont know how to resolve this, can anyone help please?, Thanks, Kronoss