@Zinsske Please try playing in a clean boot:
https://support.microsoft.com/en-us/topic/how-to-perform-a-clean-boot-in-windows-da2f9573-6eec-00ad-2f8a-a97a1807f3dd
The one service to leave enabled is the EABackgroundService, which the EA App needs in order to run. Disable the rest as described.
When you reboot your computer, go through the Task Manager's background processes list shutting down any service that doesn't absolutely need to be running, for example anything from MSI Afterburner to RGB software might still be enabled. If you accidentally kill a critical process and it doesn't restart on its own, just reboot your computer again.
Don't open anything other than Sims 4 and the EA App while testing, not even a browser window.
If you get another crash, I'd like to see a crash dump from Sims 4. Click Windows key-R and copy and paste this:
%LocalAppData%\CrashDumps
When you enter, you'll see a list of .dmp files. If one of them is from Sims 4 , please upload it to a third-party filehosting site (Google Drive, Dropbox, etc.) and link it here. If you see a crash dump that was written at exactly the time the game crashed, I'd like that too.