Re: Sims 4 "game data is missing"

@HuntDog022  Try uninstalling and then reinstalling Sims 4 into a different folder, one that you create fresh just for this purpose.  You can call it whatever you like, just don't put it inside an existing folder.  (For example, C:\Games is fine, but don't use C:\Program Files\Games.)  Install while your antivirus is disabled, and test the game before reenabling the antivirus.

After uninstalling and before reinstalling, please clear the EA App's cache:

https://help.ea.com/en/help/faq/clear-cache-to-fix-problems-with-your-games/

If this doesn't help, please create an error report within the EA App, as described here:

https://help.ea.com/za/help/ea/ea-app/run-ea-error-report/

By the way, it sounds like you've never been able to play, but if you have at any point added mods or custom content, please remove all of that before testing again.