TSData/Sys folder corrupt for Mansion & Garden Stuff

I don't know how the hell this happened, but for some fucking reason, my Sys folder for Mansion and Garden Stuff is corrupt. Every time I click on the icon to start the game (I don't use the launcher, by the way. I use the no-CD crack which I did replace to try to fix the problem), I get "I:\Program Files\EA GAMES\The Sims 2 Mansion & Garden Stuff\TSData\Sys is corrupt and unreadable" and the whole thing crashes. When I move my mouse over the folder, it says that it's empty. I can't access it all to see what the hell is going on.

This is an ARRRed copy. Should I reinstall? I know it's not my Downloads folder causing it. I moved it to the desktop and still got the same message. I tried searching on this site (got nothing) and even tried Google and got nowhere. What the hell is going on and how do I fix it?

EDIT: Apparently I had to do a completely uninstall and reinstall of everything, since just uninstalling Mansion and Garden Stuff did nothing to fix the problem. So far, everything seems to be working fine. Thanks a helluva lot EAsshole!!