Since password reset I can't see my server any more - or it says I'm not authorized

If you’re server is not showing up when you’re signed in, I’d assume that your server is not claimed. This thread maybe helpful: Server credential reset utility for Linux-based platforms

@sudds The “No soup for you” message usually means you’re locked out. See this support article: Why am I locked out of Server Settings and how do I get in? | Plex Support which is listed in the pinned thread: Important notice of a potential data breach 24th of August 2022