I get this is an OLD thread however i stumbled across this forum due to experiencing this issue for the FIRST time in my Sim gaming history after the update on 12/12/2019 and I've been playing since elementary school. I'm 25 now. LOL.
Anyways, i saw some were getting it to work using the other methods provided and some weren't. I was one of the few who weren't getting it to work. I tried everything from moving the options folder to my desktop, moving my mods folder to my desktop,opening and closing the game several times, clearing my Cache, restarting my computer, crying, eating my feelings, bargaining with the devil... i even deleted all my saves as a last resort and it would still give me the mods disabled error.
THEN I DID THIS AND IT WORKED:
I moved the sims folder ENTIRELY to my extra space drive on my SSD and named it "Electronic Arts BACKUP"
This removed it COMPLETELY from my documents (If it doesn't, just delete the folder but make sure you moving it to the other drive as a back up worked first if you don't want to lose anything like mods/saves/screen captures.) and then i restarted the game which will create a new Electronic Arts folder. Once started, i enabled mods, went out of the game, put my mods back in my new mods folder, restarted the game and IT TOOK. IT WORKED.
I hope this saves someone from drowning in their own tears like i did if the other options don't work for you.
