I terminated the EA app AND the EA background service via task manager and everything seems to work. I can launch games again and I don't see the error anymore!
@PlumDutchess For me it doesn't matter when I terminate the app and backgroundservices. Make sure everything is turned off, and then open your game through a desktop icon rather than opening the app and launching the game from there. That should open the game without the background services block
My Sims 2 is unclickable, my Sims 3 & 4 are all Error 500. The only way I was able to get my games back was to completely uninstall and reinstall the app, however, when I went to try to uninstall the apps, I encountered an error that prevented me from uninstalling it. I had to go into Task Manager and End Task for ALL EA related apps, only then would it uninstall. Please EA FIX YOUR BROKEN APP! Origin was just fine and you had no reason to change platforms especially to one this broken and unusable. Only saving grace is your tech support call holding music is some of the better elevator music I've heard. I pay so much money for your games, and I can't even play them.
Here's some advise for you EA: Give your devs more time to fix your problems (and make good content people actually enjoy), stop firing testers that make sure what you put out actually works and stop trying to shoehorn your way into a new thing you never even needed in the first place.
