If that doesn't work when you try again later, then try searching in the community@example.com format specifically, and also try searching for the URL of a specific post -- that might get it to federate the post and then you should be to access the magazine from that if it succeeds.

If that still doesn't work, message the admin of your instance and ask them for help.

Good luck.

Make sure you're logged in while you do it, pretty sure most Fediverse software will refuse to fetch remote content if you aren't logged in (to prevent abuse of resources)