Uninstalling sims 4 holiday celebrations

Hi! I recently downloaded the sims 4 holiday celebration pack add-on and now my game won't load at all owing to 'hardware issues'. My hardware exceeds all of the standards and I was playing the game immediately before i downloaded the pack and it worked fine. I want to uninstall the pack or disable it, but i cant find the game/pack code anywhere. Does anybody know the code of another way to disable it?

I have deleted and reinstalled origin (I'm using a mac), and gone through my files to fine folders etc but all with no success. Any help is really appreciated!!

Thank you 🙂