Hello
Because you have a lot of mods/cc, use the 50/50 method. Put half of your mods/cc into the mods folder then start the game and see if the issue is still there. If the issue is not there, then you know that those items work okay with the game. Then you can test the other half of your cc/mods.
If the issue is still there with the first half, you will need to keep testing them to see what is causing the problem. Then you will need to test the second half of your cc/mods too.
You may also be missing the original meshes for the cc.
