My problem is that in the begining after when they get down from the wagon, there the carracter continue to walk, it dosent know when to stop at its places.... what could be the problem ?

have you tried to repair install? thats a bit strange

also make sure the game is patched

I had the same thing happen to me and it was fixed after I reinstalled my mods.

You can start a new new game since you're only at the beginning.