It appears the manage service (https://manage.ntppool.org/) is down/unavailable. I’m getting the same behaviour on both the normal and the beta sites. So maybe the problem is actually the authentication system.
The status page (https://status.ntppool.org/) suggests everything is fine. Maybe the status page could check the auth system as well?
The reason being that a user can’t use the admin system if the auth system doesn’t work.
I didn’t know about the status page until I had a hunt around. It looks like ‘something’ happened recently to the monitoring probes but has recovered. But I’m still unable to log in to curse the NJ monitoring station/Zayo.