HI Mai,
I bought a brand new mac mini two months ago that meets all of the requirements for The Sims 4. I bought The Sims 4 for my kids and a few upgrades/add-ons from Origins. My kids played have played it for the last 7 weeks; however, about a week ago The Sims 4 quit working.
The Mac mini is completly up to date. Origins and The Sims 4 was completly up to date. I tried repairing The Sims 4, but the game still would not start. I tried having my screen in different resoluations to see if the game would start at 720, 1040, etc., but that did not work. I then tried signing out of origins (as some posts stated), restarting the computer, and then re-signing into origins; however, that did not work. I tried buying an diffrent add-on to see if the installation would do anything, but that did not work. I then deleted The Sims 4 files and reinstalled the base game (like other posts suggested), but that did not work.
I'm at a loss of what to do. Any suggestions???