Forum Discussion
On a Mac, having same issue where I can log into website and Origin, but the launcher changes my email to "null" and says please enter a valid email address (it's definitely valid and works on the ea website and origin). I tried clearing browser history in both Chrome and Safari (I guess the mac equivalent of IE), but no luck. I uninstalled / reinstalled, and same issue. Any idea what it default uses on a Mac anyone? Mac 10.15 Catalina - 64 bit Sims 3 game.
@ACMParks I believe the launcher uses either Safari or whatever the default browser is on your computer. Do you use any software that purports to clean temp files? Have you set your browser(s) to block cookies or certain kinds of trackers? In either case, the launcher might not be able to write to the location where it stores its data, or perhaps it can't even use the browser to validate your email address.
A (sort of) simple test would be to create a new admin account on your Mac and try signing into the launcher there. The new account should come with default user settings, although you might still need to temporarily disable any cleaner apps you normally run.