Plex server not starting

I’m having trouble starting using plex on mycloud.
I tried disable and enable the plex server, but then when i hit the configure button, the web page is not loading, or sending back an error when I once get the “claim” option.

Page is

Any ideas?
Thank you

Hi @mave330,

Please refer below link to check error unable to connect to the Plex Media Server on a My Cloud: