Are you still getting Error 307 after waiting 15 to 20 minutes?
If you can't log into the support portal, there is troubleshooting here that can help.
@ZOS_BillE I can log in after 10 min, but I get the same error again after playing 5 or 10min, 3 times back to back error and kick, it’s really broken. I was doing target dummy in my house and I’ve been kicked numerous times different days. Please fix.