The update for AS wouldn't affect OR, normally, so that wouldn't have done anything.
If game shouldn't have insta crashed in any case, so that's a weird scenario.
Delete the save file (using checkpoint/JKSM) and try a clean launch, without any updates.
If that doesn't work, proceed to reinstall the game clean then try again.
If it doesn't launch (or save) clean, then nothing would work.
(Suggests you have a faulty game)