@Bluebellflora So I have a MacBook Air (13-inch, 2017), 1.8GHz Dual-Core Intel Core i5 processor, 8GB 1600 MHz DDR3 memory, Intel HD Graphics 6000 1536 MB graphics, and I'm on version 10.15.5 macOS Catalina. I'm on the normal version of the game, and I've hit repair game about 3 times (each time was after I tried some new way of hopefully fixing the issue). I don't use any CC or Mods, and I'm running Bitdefender antivirus for Mac.
I've searched through the whole folder and I can't seem to find anything that says GameVersion.txt. Is there any other name it could be under? I really wish I could give more information, I just can't make sense of all the files within the sims 4 folder on my computer.