Can't log in to this forum with google account

When logged into via a google account, hitting the Login button here in the forum just produces this:

Login Error

No email address was provided. Please contact the site’s administrator.

If your google account email is listed as a student account, then you won’t be able to log in.

If you want to be able to, go into your account settings and change your “Account Type” to teacher and it should work.