On the Digital lounges page there are links such as https://slack.com/app_redirect?channel=C03HCBT0N58
When I click one I end up on a random Slack channel I've been a member of for a long time, with a failure, eg: https://haiku-community.slack.com/app_redirect?channel=C03HCBT0N58
and message like this.
There’s been a glitch…
We’re not quite sure what went wrong. You can go back, or try looking on our Help Center if you need a hand.