camera crashing problem

hi i have a really weird problem that when i try and change camera or what a camera is following or even have more than one camera in the game it crashes. now this hasnt happened in other games ive done so i dont know wat it is.

if any one has any ideas why this might be happening it would be really helpfull.

ill post the blend if you want


its ok i found out why

Why was it? (It may help someone with the same problem)

There were two reasons.

  1. i had 2 cameras and i tried to make them follow different things but i realized that the actuator only affects the current camera so it crashed because it tried to follow 2 different things

  2. i had a camera parented to something and following something