Re: Missing game packs
@Lord-Volton Try repairing the game in the EA App: open your game library, hover over the Sims 4 icon, click the three dots in the upper-right corner, and select Repair.
If this doesn't work, try repairing in Origin. Clear its cache first:
https://help.ea.com/en/help/faq/clear-cache-to-fix-problems-with-your-games/
Open your game library, right-click on the Sims 4 icon, and select Repair.
You can have both Origin and the EA App installed on the same computer, you just can't run them both at the same time. If you get an error when trying to open Origin, open the Task Manager and kill the EABackgroundService.exe, or restart your computer.