I've kinda been out of the private tracker scene for quite awhile now, and just let my Hetzner seedbox permaseed a bunch of stuff.

Recently I wanted to get into it again, but I realised that I couldn't access Rutorrent even tho Rtorrent was running. I restarted the server which didn't fix it, and now I'm shown as "unconnectable" on all my trackers even though Rtorrent is running.

I decided to try updating the server (since it had been running unattended for more than a year.) When I do "apt update" I get these errors: https://pastebin.com/EQXEMDyy

It has been so long since I set it up, that I've absolutely no idea what to do.

The server is running: Ubuntu 16.04.4 LTS (GNU/Linux 4.15.0-72-generic x86_64)

Any advice will be appreciated.