Update, as far i saw it is the right stick. when a quest or something is finished and the quest finished notice pop up, as long i dont move the right stick and just press a to close the window the game dont crash, but i can provoke the crash, when the quest finish notice is open and i move the right stick around, the game crashes completely.
please fix that, i think this can not be a real big deal, and i see in the steam forum and reddit (on reddit a guy has this tipp with the right stick) that iam not the only one who has this problem.