Some index files failed to download

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I know there is a issue with my sources, but is there a simple command to automatically delete the wrong source (though SSH?)

Here is what I have when attempt to do an update :

sudo apt-get update && sudo apt-get dist-upgrade
Err:1 https://dev2day.de/pms jessie InRelease                                                                                                           
  Failed to connect to dev2day.de port 443: No route to host
Ign:2 http://ports.ubuntu.com/ubuntu-ports xenial InRelease                                                                                             
Ign:3 http://ports.ubuntu.com/ubuntu-ports xenial-updates InRelease                                                                                     
Ign:4 http://ppa.launchpad.net/deluge-team/ppa/ubuntu xenial InRelease                                                                                  
Ign:5 http://ppa.launchpad.net/jcfp/nobetas/ubuntu xenial InRelease                                                                                     
Ign:6 http://ppa.launchpad.net/jcfp/ppa/ubuntu xenial InRelease                                                                                         
Ign:7 http://ppa.launchpad.net/plexapp/plexht/ubuntu xenial InRelease                                                                                   
Ign:8 http://ppa.launchpad.net/qbittorrent-team/qbittorrent-stable/ubuntu xenial InRelease                                                              
Ign:9 http://ppa.launchpad.net/saiarcot895/myppa/ubuntu xenial InRelease                                                                                
Ign:10 http://ppa.launchpad.net/team-xbmc/ppa/ubuntu xenial InRelease                                                                                   
Ign:11 http://ppa.launchpad.net/team-xbmc/xbmc-nightly/ubuntu xenial InRelease                                                                          
Ign:12 http://download.mono-project.com/repo/debian wheezy InRelease                                                                                    
Ign:13 http://deb.odroid.in/5422 xenial InRelease                                                                                                       
Ign:14 http://apt.sonarr.tv master InRelease                                                                                                            
Ign:15 http://ports.ubuntu.com/ubuntu-ports xenial-security InRelease                                                                                   

[/… delete line]

ation-en_US}
Ign:133 http://ports.ubuntu.com/ubuntu-ports xenial-security/main Translation-en
Ign:134 http://ports.ubuntu.com/ubuntu-ports xenial-security/restricted armhf Packages
Ign:135 http://ports.ubuntu.com/ubuntu-ports xenial-security/restricted all Packages
Ign:136 http://ports.ubuntu.com/ubuntu-ports xenial-security/restricted Translation-en_US
Err:146 http://ports.ubuntu.com/ubuntu-ports xenial-proposed/main Sources
Cannot initiate the connection to ports.ubuntu.com:80 (2001:67c:1360:8001::22). - connect (101: Network is unreachable) [IP: 2001:67c:1360:8001::22 80]
Ign:147 http://ports.ubuntu.com/ubuntu-ports xenial-proposed/restricted Sources
Ign:148 http://ports.ubuntu.com/ubuntu-ports xenial-proposed/universe Sources
Ign:149 http://ports.ubuntu.com/ubuntu-ports xenial-proposed/multiverse Sources
Ign:150 http://ports.ubuntu.com/ubuntu-ports xenial-proposed/main armhf Packages
Ign:151 http://ports.ubuntu.com/ubuntu-ports xenial-proposed/main all Packages
Ign:152 http://ports.ubuntu.com/ubuntu-ports xenial-proposed/main Translation-en_US
Ign:153 http://ports.ubuntu.com/ubuntu-ports xenial-proposed/main Translation-en
Ign:154 http://ports.ubuntu.com/ubuntu-ports xenial-proposed/restricted armhf Packages
Ign:155 http://ports.ubuntu.com/ubuntu-ports xenial-proposed/restricted all Packages
Ign:156 http://ports.ubuntu.com/ubuntu-ports xenial-proposed/restricted Translation-en_US
Err:166 http://ports.ubuntu.com/ubuntu-ports xenial-backports/main Sources
Cannot initiate the connection to ports.ubuntu.com:80 (2001:67c:1360:8001::22). - connect (101: Network is unreachable) [IP: 2001:67c:1360:8001::22 80]
Ign:167 http://ports.ubuntu.com/ubuntu-ports xenial-backports/restricted Sources
Ign:168 http://ports.ubuntu.com/ubuntu-ports xenial-backports/universe Sources
Ign:169 http://ports.ubuntu.com/ubuntu-ports xenial-backports/multiverse Sources
Ign:170 http://ports.ubuntu.com/ubuntu-ports xenial-backports/main armhf Packages
Ign:171 http://ports.ubuntu.com/ubuntu-ports xenial-backports/main all Packages
Ign:172 http://ports.ubuntu.com/ubuntu-ports xenial-backports/main Translation-en_US
Ign:173 http://ports.ubuntu.com/ubuntu-ports xenial-backports/main Translation-en
Ign:174 http://ports.ubuntu.com/ubuntu-ports xenial-backports/restricted armhf Packages
Ign:175 http://ports.ubuntu.com/ubuntu-ports xenial-backports/restricted all Packages
Ign:176 http://ports.ubuntu.com/ubuntu-ports xenial-backports/restricted Translation-en_US
Err:186 https://deb.nodesource.com/node_4.x xenial InRelease
Failed to connect to deb.nodesource.com port 443: No route to host
Reading package lists… Done
W: The repository ‘http://ports.ubuntu.com/ubuntu-ports xenial Release’ does not have a Release file.
N: Data from such a repository can’t be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository 'http://ports.ubuntu.com/ubuntu-ports xenial-updates
W: The repository ‘http://ppa.launchpad.net/jcfp/nobetas/ubuntu xenial Release’ does not have a Release file.
N: Data from such a repository can’t be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository ‘http://ppa.launchpad.net/jcfp/ppa/ubuntu xenial Release’ does not have a Release file.
N: Data from such a repository can’t be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository ‘http://ppa.launchpad.net/plexapp/plexht/ubuntu xenial Release’ does not have a Release file.
N: Data from such a repository can’t be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository ‘http://ppa.launchpad.net/qbittorrent-team/qbittorrent-stable/ubuntu xenial Release’ does not have a Release file.
N: Data from such a repository can’t be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository ‘http://ppa.launchpad.net/saiarcot895/myppa/ubuntu xenial Release’ does not have a Release file.
N: Data from such a repository can’t be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository ‘http://ppa.launchpad.net/team-xbmc/ppa/ubuntu xenial Release’ does not have a Release file.
N: Data from such a repository can’t be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository ‘http://download.mono-project.com/repo/debian wheezy Release’ does not have a Release file.
N: Data from such a repository can’t be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository ‘http://deb.odroid.in/5422 xenial Release’ does not have a Release file.
N: Data from such a repository can’t be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository ‘http://apt.sonarr.tv master Release’ does not have a Release file.
N: Data from such a repository can’t be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository ‘http://ports.ubuntu.com/ubuntu-ports xenial-proposed Release’ does not have a Release file.
N: Data from such a repository can’t be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository ‘http://ppa.launchpad.net/team-xbmc/xbmc-nightly/ubuntu xenial Release’ does not have a Release file.
N: Data from such a repository can’t be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: The repository ‘http://ports.ubuntu.com/ubuntu-ports xenial-backports Release’ does not have a Release file.
N: Data from such a repository can’t be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: Failed to fetch https://deb.nodesource.com/node_4.x/dists/xenial/InRelease Failed to connect to deb.nodesource.com port 443: No route to host
W: Failed to fetch https://dev2day.de/pms/dists/jessie/InRelease Failed to connect to dev2day.de port 443: No route to host
E: Failed to fetch http://ports.ubuntu.com/ubuntu-ports/dists/xenial/main/source/Sources Cannot initiate the connection to ports.ubuntu.com:80 (2001:67c:1360:8001::22). - connect (101: Network is unreachable) [IP: 2001:67c:1360:8001::22 80]
E: Failed to fetch http://ports.ubuntu.com/ubuntu-ports/dists/xenial-updates/main/source/Sources Cannot initiate the connection to ports.ubuntu.com:80 (2001:67c:1360:8001::22). - connect (101: Network is unreachable) [IP: 2001:67c:1360:8001::22 80]
E: Failed to fetch http://ports.ubuntu.com/ubuntu-ports/dists/xenial-security/main/source/Sources Cannot initiate the connection to ports.ubuntu.com:80 (2001:67c:1360:8001::22). - connect (101: Network is unreachable) [IP: 2001:67c:1360:8001::22 80]
E: Failed to fetch http://ppa.launchpad.net/deluge-team/ppa/ubuntu/dists/xenial/main/source/Sources Unable to connect to ppa.launchpad.net:http:
E: Failed to fetch http://ppa.launchpad.net/jcfp/nobetas/ubuntu/dists/xenial/main/source/Sources Unable to connect to ppa.launchpad.net:http:
E: Failed to fetch http://ppa.launchpad.net/jcfp/ppa/ubuntu/dists/xenial/main/source/Sources Unable to connect to ppa.launchpad.net:http:
E: Failed to fetch http://ppa.launchpad.net/plexapp/plexht/ubuntu/dists/xenial/main/source/Sources Unable to connect to ppa.launchpad.net:http:
E: Failed to fetch http://ppa.launchpad.net/qbittorrent-team/qbittorrent-stable/ubuntu/dists/xenial/main/source/Sources Unable to connect to ppa.launchpad.net:http:
E: Failed to fetch http://ppa.launchpad.net/saiarcot895/myppa/ubuntu/dists/xenial/main/source/Sources Unable to connect to ppa.launchpad.net:http:
E: Failed to fetch http://ppa.launchpad.net/team-xbmc/ppa/ubuntu/dists/xenial/main/source/Sources Unable to connect to ppa.launchpad.net:http:
E: Failed to fetch http://download.mono-project.com/repo/debian/dists/wheezy/main/binary-armhf/Packages Cannot initiate the connection to download.mono-project.com:80 (2606:2800:133:206e:1315:22a5:2006:24fd). - connect (101: Network is unreachable) [IP: 2606:2800:133:206e:1315:22a5:2006:24fd 80]
E: Failed to fetch http://deb.odroid.in/5422/dists/xenial/main/binary-armhf/Packages Unable to connect to deb.odroid.in:http:
E: Failed to fetch http://apt.sonarr.tv/dists/master/main/binary-armhf/Packages Unable to connect to apt.sonarr.tv:http:
E: Failed to fetch http://ports.ubuntu.com/ubuntu-ports/dists/xenial-proposed/main/source/Sources Cannot initiate the connection to ports.ubuntu.com:80 (2001:67c:1360:8001::22). - connect (101: Network is unreachable) [IP: 2001:67c:1360:8001::22 80]
E: Failed to fetch http://ppa.launchpad.net/team-xbmc/xbmc-nightly/ubuntu/dists/xenial/main/source/Sources Unable to connect to ppa.launchpad.net:http:
E: Failed to fetch http://ports.ubuntu.com/ubuntu-ports/dists/xenial-backports/main/source/Sources Cannot initiate the connection to ports.ubuntu.com:80 (2001:67c:1360:8001::22). - connect (101: Network is unreachable) [IP: 2001:67c:1360:8001::22 80]
W: Some index files failed to download. They have been ignored, or old ones used instead.

You should use the fixes tool located in Software Boutique.

System>Control Center>Software Boutique>Fixes> and use Update Sources List and perhaps other tools also. Good luck kevincork.