Network Unreachable – Fixing Fully Broken Internet Connection on Ubuntu Server

my Ubuntu server lost its internet connection suddenly (I wasn't even ssh'd in). Now all pings with a hostname fail to resolve and a ping to 8.8.8.8 or 8.8.4.4 returns network is unreachable.

How can I fix this?
I've attached a couple images of command that I think could help, as I can't use SSH:

I would really appreciate any help.

I've already searched for "ubuntu network unreachable" and tried everything on the first page of results. With no results except this page meant for arch: https://unix.stackexchange.com/questions/80493/arch-linux-connect-network-is-unreachable
where the part with the modprobe e1000e allowed me to ping the gateway/router, but no more. However after rebooting even that didn't work anymore.

If you need anymore info, please just ask. I'm fairly new to Linux/Ubuntu.

Thanks in advance.

Edit:
Networkctl says interface is degraded (configuring)