@EJones77 Hi! Sorry to hear that ☹️
Have you tried ( if applicable for cc / mods parts )
Remove any mods / cc / tray to desktop
Saves to desktop THEN:
Delete thumbcache
From the EA PANEL use REPAIR
Start a clean game
IF that is successful, add removed files back beginning with CC / mods ( 50/50 style ) then trays (Saves should be last so as not to corrupt with missing items )
If game works then saves back and sim away! 🙂
IF USING mods / cc make sure they are up to date!! 🙂
hope that helps.