Update 2FA error wording.

mozillians/common/authbackend.py

@@ -167,7 +167,8 @@ class MozilliansAuthBackend(OIDCAuthenticationBackend):
             auth0_user_id=auth0_user_id)
 
         if profile.groups.filter(is_access_group=True).exists() and not is_mfa:
-            msg = 'Members and Curators of Access Groups cannot use Passwordless to login.'
+            msg = ('Members and Curators of Access Groups need to use a 2FA'
+                   ' authentication method to login.')
             messages.error(self.request, msg)
             return None