Crashing on third Ascendancy, (VERY FRUSTRATING)

I have been trying to do my third ascendancy for quite some time now but every time I get close to beating either trial, my game crashes. Thus never letting me ascend. Not sure what to do other than play something else, I have not heard of anyone else with this problem so I do not see my problem getting fixed anytime soon.

Check file integrity. Maybe bugged download or something. Def never had this issue.