Try doing the same on the extracted file. If it still doesn't work I'll look into a fix
Viewing post in Five Nights at Epstein's comments
I figured out what the problem is, and unfortunately it is not fixable. This does not mean you can't play the game on Mac. You can try downloading the Windows version and using a tool like Whiskey to emulate it. For more info head over to the downloads and watch the video linked in the Mac install instructions.
Or just watch it here: