"An unknown error has occurred"
So, a while ago, I bought and installed sims 3 supernatural. It worked perfectly. However, a few month ago, I lost the disk. Recently, I bought Sims 3 Generations and Sims 3 Seasons. Note that both of these games were released more recently Supernatural. However, I installed both games and when I tried to open up the menu, it said "an unknown error has occured", then exited out of the application altogether. I tried dragging both icons right onto my desktop from the applications folder even though it didn't make much of a difference, then I tried uninstalling all of the expansion packs I have, including Supernatural. However, when I tried opening up Sims 3 (with no expansion packs installed) the Supernatural icon appeared. The menu came up this time, but when I tried clicking Play, it said "No game disk found! Insert Sims 3 Supernatural disk and try again!" I've tried uninstalling all of the sims 3 games I have, including the main game, restarting my computer and emptying my trash bin of all of the SIms 3 stuff I have; still, the same thing keeps happening. I'm not sure why; could anyone give me a hand?