Forum:Error Code 12

Hey everyone! I've been playing the sims 3 for awhile now and I took a break from playing for maybe a month or so. I went back to it a few days ago and now it wont let me save, I've tried numerous times but I still keep getting Error Code 12. I have every expansion/stuff packs except: Supernatural, Katy Perry Sweet Treats, and Into The Future. Does anyone know how I can stop this from happening? I've tried in different neighborhoods and saving as soon as I enter a game too, any help would be appreciated thanks.