All of your Mods and CC need to be compatible with the current patch level, not just some of them. Move them all out and then move small batches back into the Mods folder, checking after each batch that the game will load. When the error comes up you have found some incompatible CC/Mods, you'll then need to test the batch you just added individually to see which piece(s) is incompatible.
It's in my signature below, CC creators are responsible for making sure their creations are compatible with the game, not EA. The Seasons patch was massive and a lot of Mods broke.
