SOLVED: Systemctl failure

[TheDreadPirate]

Shot in the dark. Are you running Emby? If so, that uses the same port as Jellyfin and Jellyfin can't start.

If not, run this command to get more info.

Code:

sudo journalctl -u jellyfin

This will put you in a text editor like interface for Jellyfin's logs. Press shift+g to go to the bottom. Copy and paste the last ~100 lines into pastebin then share the link.