I never noticed this before until now that the imvehft mod gives a crashes whenever a vehicle is wrecked and you try to spawn another where it is at (when it is cleared)
As you could imagine, this can be quite a bit of a problem because if at anytime you may be playing the game and you spawn a vehicle where the wreecked one is at you may end up blaming your vehicle spawner for the crash when it is not really to be blamed at all.

This problem is found to be in at last the 2.0.2 version...I don't know if this is a problem in the 2.1.1 version but the 2.1.1 version works not so well on my pc and I also do not like the flicking sound that it makes whenever the headlight is switched on and off (what can i say, I like a bit of fakeness sometime lol) so I prefer using the 2.0.2 version instead.

Until if the imvehft or the ImVehFtFix mod is updated, at least for the 2.0.2 version this script can act as a temporary fix.
Just download and place the .cs file in the cleo folder.