Having problems with PC game torrent?

I downloaded the Sims 3 Late Night expansion.



From a torrent, it was 5gb and in a rar. file.



I extracted everything, and ran and installed everything, yet when I go to the game launcher a note says "Base game incompadible, update from launcher".



And then, the following note is that the disk is required??

But the game is a torrent, and therefore I don't have a disk for this game......Having problems with PC game torrent?
Y!A - is NOT a pirates 'help' site for game torrents.



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