Hit:1 http://deb.i2p2.no unstable InRelease
Hit:2 https://repo.skype.com/deb stable InRelease
Hit:3 http://packages.microsoft.com/repos/vscode stable InRelease
Hit:4 http://old.kali.org/kali sana InRelease
Hit:6 http://old.kali.org/kali moto InRelease
Hit:5 http://ftp.yzu.edu.tw/Linux/kali kali-rolling InRelease
Hit:7 https://packagecloud.io/slacktechnologies/slack/debian jessie InRelease
Err:8 http://kali.mirror.garr.it/mirrors/kali kali-rolling InRelease
  Cannot initiate the connection to kali.mirror.garr.it:80 (2001:760:ffff:b7:5:100:0:69). - connect (101: Network is unreachable) Could not connect to kali.mirror.garr.it:80 (90.147.164.69), connection timed out
Reading package lists... Done
W: Failed to fetch http://kali.mirror.garr.it/mirrors/kali/dists/kali-rolling/InRelease  Cannot initiate the connection to kali.mirror.garr.it:80 (2001:760:ffff:b7:5:100:0:69). - connect (101: Network is unreachable) Could not connect to kali.mirror.garr.it:80 (90.147.164.69), connection timed out
W: Some index files failed to download. They have been ignored, or old ones used instead.