@Kawiikitten2222
Thanks for those details, please try the following to clear this up:
Turn off Your system completely
Make sure your game is up to date.
-
To set your console to automatically receive updates:
- Press the Xbox button to open the guide.
- Select System > Settings > System > Updates & downloads.
- Select Keep my console up to date for console and Keep my games & apps up to date for games and apps.
Uninstall and Reinstall the game:
Uninstall
- Press the Xbox button to open the guide, then select My games & apps > See all > Games.
- Highlight the game you want to uninstall, press the Menu button select Uninstall, and then follow the prompts.
Reinstall
- You can then reinstall the game by inserting the disc or downloading it again from the Microsoft Store or Xbox Game Pass, or go to My games & apps > Full library.
- DLC - Highlight the Sims 4 on the dashboard. Press the Menu button, Select Manage Games and Addons. Install all the DLC from there.