All my packs gone

Helloooo

nothing else was working so im trying this. I had a bunch of packs installed, then I stopped playing for a bit, and I just recently reloaded and they're all gone. they're not showing up in my manage add ons or the marketplace collections thing, but they're in the dlc folder? i tried everything, restarting the app, doing the cache thing, deleting the user thing, but nothings working..plz help and tell me the hundreds of dollars i've spent in this game didn't just go in the trash