My sims 4 CC not working at all

@abigailkay4 Hello!  I'm curious about what you said here: "I went through all of my cc but i think i deleted someting that made the cc work".  Does that mean you were cleaning out your mods folder and deleting stuff?  I don't use a lot of CC myself but I do believe some CC require a certain mesh that must be saved with them in the same folder.   There are a couple things I would suggest.  You could test it by creating a folder on your desktop and move all your CC files there.  Then add the files back a little bit at a time.  It might be easiest to group them, i.e. by creator or by item (accessories vs. tops) etc.

You could also try going back to the sites where you got the CC and see if any of them require a mesh.

As for the problems in CAS, that sounds like it might be a mod issue.  The UI mods in particular are known to cause issues in CAS.  Perhaps you could try moving all your mods out and then open the game again to see if those CAS problems persist.

I also suggest you delete the localthumbcache.package file located in the Documents / Electronic Arts / The Sims 4 folder, after removing mods / CC and before testing the game again.  That cache file can sometimes carry over effects from mods even after they've been removed.  Hope this helps!