I've done everything discussed in this thread. The only thing that got it to work again for a little while was to uninstall and reinstall. Then, unfortunately, my laptop battery died (my child unplugged it) and I haven't gotten it to run since. I even uninstall/reinstalled again.
EA, why would you release a game this buggy?!?! I've never had issues like this with other games. You should release a version without Easy anti-cheat (more like anti-run-the-program), see if that works, and update it later.
Update: Hours later, I did yet another uninstall/reinstall. The game launched itself at 70% and ran fine. Then, when it was almost done installing, it popped up the error code WHILE I WAS PLAYING. What voodoo is this? I'm leaving it minimized for now overnight in hopes that it will not quit on me, LOL.