@sharee730 Hello! I'm sorry your CC isn't working. I think the reason is that the latest patch updated the game's code to allow for things like nails and mask treatments. This may mean that your CC could be broken or incompatible with the game now. First, I suggest these steps.
1. Create a folder on your desktop and move all your CC to that folder.
2. Delete the localthumbcache.package file located in the Documents / Electronic Arts / The Sims 4 folder
3. Open the game and check to make sure mods/CC are enabled
4. Close the game and move your CC back to the mods folder
5. Open the game and see if your CC is working again
If any of your CC is still not showing up in the game, then the only thing I know to do from there is to look for updated versions from the creators. Hopefully, they have updates available wherever you downloaded the CC.