Game won't start with cc or mods installed

So, since the latest patch update I’ve been having a weird issue with my game...

Whenever I play with any types of CC or smaller mods, my game won’t start!

It goes to this screen...

and then halts, either just stops, or the rainbow wheel appears, and I have to force it to shut down!

It somehow works with the MCC and WW folders still in the mods folder, but the second I put anything else in; nothing!!!

I’d rather not play without my CC as my savefiles are filled with stuff and I’d have to remake everything 😩

I play on a iMac, new last year and updated! I’ve uninstalled and re-installed both origin and the game itself!

Any tips or ideas?