Yesterday I updated my Mac to the newest version (I believe) of OS, High Sierra. Since then, my Sims won't start or application won't respond and it's definitely not anything to do with my mods of CC because I took it all out, uninstalled then reinstalled. Since reinstalling, the Sims app won't even appear on my dock anymore; there isn't a logo, just a big grey question mark.
Has anybody else experienced? Can it be fixed?