Sonarr

12/2/18 The newest version on mono (5.16) has bugs and breaks sonarr/radarr/jackett. Follow these steps to roll back to 5.14:

sudo apt remove --purge --auto-remove mono-runtime

sudo nano /etc/apt/sources.list.d/mono-official-stable.list

change:

deb https://download.mono-project.com/repo/debian stable-raspbianstretch main

to:

deb https://download.mono-project.com/repo/debian stable-raspbianstretch/snapshots/5.14.0.177 main

sudo apt update

sudo apt install mono-runtime

to run manually:

/usr/bin/mono /opt/NzbDrone/NzbDrone.exe -nobrowser