I've a fresh install of Amahi 8. I used the dashboard to install Plex. If I click on the link from the dashboard, I get
"Service Unavailable - The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.
I've folllowed a few other threads and tried a updating and
systemctl status amahi-plex
and got
amahi-plex.service
loaded: not found (Reason: no such file or directory)
Active:" Inactive (dead)
But it's still visible in the dashboard. I've also got a similar visible but not working problem with Owncloud - the "PHP module zip not installed. Please ask your server administrator to install the module, but I thought we could try them one at a time

Thanks