In your text editor, remove the following attribute/key pairs from the `Preferences.xml` file:
* `PlexOnlineHome="1"`
* `PlexOnlineMail="jane@example.com"`
* `PlexOnlineToken="RanD0MHex1DecIm4LtoKeNheR3"`
* `PlexOnlineUsername="ExampleUser"`
Looks like you instead just deleted the value for PlexOnlineToken and left the key
When I remove the whole parameter PlexOnlineToken=“” and reboot or “service plexmediaserver stop/start”, the parameter comes back by itself, empty as before
I think I found out the problem : That was OMV that was updating my resolv.conf file and erasing it after each reboot. I went in OMV admin page and set a static DNS for my system from there. Like this, OMV enter the correct nameserver in resolv.conf file after rebooting.