It could be anything, you really should give more info.
What were you doing exactly when the game crashed?
After crashing is the process still running? (push ctr-alt-del and see if lfs.exe is still running). If it is end the process, and see if it will load back up.
If it does try to recreate the crash.
Have there been any changes on your PC since you last played LFS? (new drivers installed for instance)
first it freezes and you cant click back on the program to close it, it says its not responding,then i try to start the game back up and it doesnt load
using ps2 controller,drivers up to date, lastest patch,no overheating,its only just started happening ac couple of days ago, sometimes its when i choose a car or somtimes its at any random time