unRaid Docker Container: new install won't start

I’m trying to install a Docker + Prometheus instance on my unRaid server via a Docker Container template available via their Community Applications repository. After the container installs it fails to start. Attempts to manually start are met with a generic “Server Error”, and does not generate any logs. If I attempt to run the container with a network type of HOST instead of the template’s default of BRIDGE, it does seem to start (according to the status in unRaid dashboard). However the webUI does not load. Instead I simply get a blank page displaying:

welcome to the :grafana: forum, @velcrobp

can you please link to the unraid docs that you are using?