I have the files and installed the patch

I have some expansions, and the one the launcher opens with is the sims 3 showtime, I have the crack and it still says that the disc was not found. HELP!!!!!

Hello and welcome!
If your game is already updated to latest version (vr 1.67)?
if not get it here please:
https://games4theworld.forumotion.com/t1870-can-t-update-the-sims-3-to-v166-fix-manual-patch
and after you already updated to latest version get the Ultimate Fix here and apply it properly please:
https://games4theworld.forumotion.com/t752-the-sims-3-ultimate-fix-should-fix-most-of-your-problems
That should fix your problem but if it doesn't please let us know so we can help you further!

Hi there, adding to what ellajohnson said when applying the ultimate fix copy the files of crack folder which is present in the ultimate fix to C:programfiles(X86)/electronicarts/thesims3/game/bin.