I had an issue a few weeks ago where all of a sudden one of our BIMcloud servers went offline. It wasn’t accessible from Archicad or Safari to manage. I restarted all servers using the Finder bar/ Task Bar menu and it came back to life. The machine that couldn’t access the Server also had a rogue local IP it was trying to use to access BIMcloud so we had to manually remove that too.
Lee Hankins ArchiCAD 4.5 - Archicad 27UKI Apple Silicon 5003 macOS Ventura (13.5.2)