There could be several reasons for login issues:
1. Try logging out completely, then hard refresh your browser:
• Mac: Press Cmd+Shift+R (Chrome/Firefox) or Cmd+Option+R (Safari)
• PC: Press Ctrl+F5
2. If you're using a password but can't log in, try the "forgot password" option on the login page.
3. If you don't receive a password reset email, you might be set up to sign in with Google Authentication. Try logging in with Google instead.
If these steps don't work, please request human assistance by clicking "Talk to a person."