When I run
sudo apt -y update
I get
Hit:1 http://mirror.hetzner.de/ubuntu/packages bionic InRelease
Get:2 http://security.ubuntu.com/ubuntu bionic-security InRelease [88.7 kB]
Hit:3 http://archive.ubuntu.com/ubuntu bionic InRelease
Hit:4 http://mirror.hetzner.de/ubuntu/packages bionic-backports InRelease
Hit:5 http://archive.ubuntu.com/ubuntu bionic-backports InRelease
Hit:6 http://mirror.hetzner.de/ubuntu/packages bionic-security InRelease
Hit:7 http://mirror.hetzner.de/ubuntu/packages bionic-updates InRelease
Hit:8 http://archive.ubuntu.com/ubuntu bionic-updates InRelease
Fetched 88.7 kB in 1s (144 kB/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done
4 packages can be upgraded. Run 'apt list --upgradable' to see them.
I'm new to Ubuntu and I'm not sure what to do to fix that, I'd appreciate any help. Thank you.