Plex Media Server is unavailable

I get this every time I try to open Plex -
The server “xxxxx” is unavailable
Plex will automatically try to reconnect to this server

My system is iOS, working through a Mac Mini with a Seagate external drive for media._ (Logs are on a zip attached below)_
I’ve been to numerous Plex Forums for help_ (see below.)_ The problem is I’m not familiar with adding any sort of code. Can anyone give me help on what to do without adding any code please?

outlined by wiittttt Update to plex 9.16.4 --> no connection to server - #41 by wiiittttt - Desktops & Laptops - Plex Forum

Thank you very much for looking into this for me. I’ll try it right away!