I have Zimaos running on a Lenovo P920 and the 2 plex versions I cannot get to claim. Is there a different version?
How are you trying to do the server claim? You should use PLEX_CLAIM environment variable to specify your token to claim the server. The most reliable image for my server ended up being the official Plex docker image: Releases · plexinc/pms-docker · GitHub so feel free to give it a shot and see it works for you too.