The issue has been resolved.

A fix to the current issue is being tested and will be reviewed soon. The portal will be unavailable for a brief period of time. Please hang tight.

We have identified the issue and are currently working on a fix.

Our on-call developers have been notified of the issue.

Several users have reported that the management portal says "Looks like this workspace isn't active right now" when signed in.
We are aware of the current issue.