This server isn't in your Reelhost account: what to do

• Reelhost adds the server to your account again by itself: when the account says it's gone, it adds it once, tries your request again, and waits longer between tries (5 minutes, 30 minutes, 2 hours, then 6 hours) if that doesn't work. The hourly check does the same. A new Jellyfin server id (after reinstalling Jellyfin) replaces the old entry, and your family members and open invites follow it.
• If you still see the message, press Show this server in my Reelhost account again, next to the message in Family members, Sign in with Reelhost and Signal apps. It says Done: this server is back in your account, or why it couldn't and what to do next. Family members keeps its invite form in view, greyed out, until the server is back.
• If the reason is "This computer isn't active on your Reelhost license", open License, activate this computer, then press the button again.
• Signal on a TV or phone says Your server isn't signed in to your account right now with Try again and Use another way to sign in (Quick Connect, or typing the address). It doesn't keep retrying.