W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/p/pillow/python3-pil_7.0.0-4ubuntu0.3_amd64.deb
  Cannot initiate the connection to archive.ubuntu.com:80 (2001:67c:1360:8001::24). - connect (101: Network is unreachable) Cannot initiate the connection to archive.ubuntu.com:80 (2001:67c:1360:8001::23). - connect (101: Network is unreachable)

W: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/universe/x/xsane/xsane_0.999-8ubuntu2.1_amd64.deb
  Cannot initiate the connection to archive.ubuntu.com:80 (2001:67c:1360:8001::24). - connect (101: Network is unreachable) Cannot initiate the connection to archive.ubuntu.com:80 (2001:67c:1360:8001::23). - connect (101: Network is unreachable)

W: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/universe/x/xsane/xsane-common_0.999-8ubuntu2.1_all.deb
  Cannot initiate the connection to archive.ubuntu.com:80 (2001:67c:1360:8001::24). - connect (101: Network is unreachable) Cannot initiate the connection to archive.ubuntu.com:80 (2001:67c:1360:8001::23). - connect (101: Network is unreachable)