@daniegrayorm
This is not a Mac forum so I will give you links here to the Mac forum. There you can look for solutions to this problem.
However, I would reinstall Origin because I do not think the rules for Windows or Mac were different when it comes to the game.
Downolad Origin from here
http://origin.com/download
MAC forum
https://answers.ea.com/t5/The-Sims-Mac/bd-p/The-Sims-Mac
important info
https://answers.ea.com/t5/The-Sims-Mac/Origin-In-Game-and-the-macOS-Mojave-Update/m-p/7053780#M14299
and additional info
the game won't run unless you have both Origin and the Sims 4 installed on the same drive as your OS
I don't work for EA
