[lelemaster]

It's because you have too many errors that it says that it stop working.I bet you didn't place the codes at the right place, you don't have IsACop defines, strtok, PlayerInfo, COLOR_GREY, IsACopCar, IsNgCar, ect.
The codes wont work before all of the things are defined properly and placed a the good place. Taking codes from an other script doesn't help you at all for learning and it's not always good. You should try making a basic, then we can help you, tell you your mistakes.