Hi, have you tried clearing your cache with your mods still in?
here how to do it.
Go to C:\Users\Your username\Documents\Electronic Arts\The Sims 4 clear out the folders with cache in the name, and delete the localthumbcache.package load up the game and see if that works. If not try again. If it still doesn't work, I'm not sure what to suggest, other than what you've already tried
You can do what is mentioned above my message here. Or rename your current The Sims 4 (to The Sims 4 old or whatever you like) folder and start the game so it creates a new, fresh folder.
Then move all the files you like to have over, live your saves and mods.
Over here you can read all about what the files are in your old folder:
https://sims4.crinrict.com/en/2014/09/user-files-explained/
