that is true, now that I logged off it shows log in screen and everything normally, why is that if the site is really down?
It's just an error being hit that is in code that only runs for a logged in user. If they are making database changes, for instance, this could cause this kind of problem.
It's not a sign of anything sinister. It's not a sign of anything at all, other than that there is an error happening on the server when some code is being run that only runs when you are logged in. It's also why those /static/ pages are fine, since they are static. (I think they rely only on data stored in cookies/localStorage)
Here the website is now back up and running.
Same here, working again