I can’t check open auditions.

I had a similar thing happen to me. I saved my sim and moved them into a new save game (I'd accidentally deleted the PDP Lot so couldn't attend awards ceremonies) and tried to load up her auditions to find they wouldn't work - the window would pop up but nothing appeared in there. I managed to fix it by having my sim quit her job before saving her and moving her over, but now I have to start from the bottom of her career again. If I use cheats to promote her to where she was at before, the auditions disappear again. Deleting the local thumb cache and repairing the game had no effect. I removed all CC and the bug was still there.