Custom Content Deletion and Reinstallment

So I have no idea if this has happened to other people, but I got back on my game after a few months of not playing and all of my CC and mods were deleted, and the game will not reinstall them to where I can use them. It said that with the newest update that all of the items were not compatible, but i have over 200 items combined of CC and mods that I'll use so there is no way all of it is not compatible

The app I use for CC and mods is Curse Forge, and it might have something to do with the app but I doubt it as it worked perfectly fine 2 months ago. 

If anyone knows a way to fix it please let me know.