I'm a new user and don't know much about EOS, but it said that the first thing new users need to do is update and upgrade The problem is, I don't know how to fix this problem (screenshoot), I already try to find the way to fix from google but no one could fix this, It happens when I write sudo apt-update, Does anybody know how to fix it ? Thankyou It's elementary OS 0.4.1 Loki (sorry for my bad english)
