Sudden basic auth prompt, loss of "pro" designation

New to deno, and just started playing around with deno Fresh. Also I'm a newly minted deploy "pro" user.

When I deployed some changes today, wanting to check them out on deno deploy, my test site:

https://rc-deno-fresh-test.deno.dev/

... suddenly started throwing a "basic auth" popup (that kind of drops down from the top of the browser). While I was indeed in the middle of testing basic auth in routes, it was isolated to a single file and not even yet working, so, I was ignoring it for now. It wasn't related to the / route either.

Why would the site suddenly give a signin prompt?

Secondly and I'm not sure if it's related, but as I was poking around the dashboard trying to see if I had inadvertently clicked something related to the above, and the UI was generally throwing a lot of errors. For instance, the logs tab of the project showed an error related to an API token.

Then I noticed the "pro" designation had disappeared from my name on the upper left, so I logged out and back in. The pro designation came back, the logs stopped showing errors, and finally the site stopped showing that login popup.

Can someone shed some light?

Start by opening the linked Deno Deploy test site and reviewing the project's dashboard logs, especially the API token error. Compare the behavior before and after logging out and back in; done means reproducing or clearly explaining the basic-auth prompt, dashboard errors, and missing Pro designation.

Written by the indexing model from the issue text.