@mattdude411 Try moving your entire Sims 3 folder out of Documents\Electronic Arts and onto your desktop. When you launch the game, a clean folder will spawn with no content. Start a new save, and test a couple of travel transitions as well as exiting to the Main Menu. Even if it works, quit, restart your PC, and test again, just to be thorough.
If you still get crashes, make sure OneDrive isn't automatically syncing the contents of Documents. You can disable it to test, or just tell it not to sync Documents.
https://support.office.com/en-us/article/choose-which-onedrive-folders-to-sync-to-your-computer-98b8b011-8b94-419b-aa95-a14ff2415e85
