E: http://apt.last.fm/debian stable InRelease is not (yet) available (Could not resolve 'apt.last.fm')
W: Target Packages (non-free/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list.d/sources.list:1 and /etc/apt/sources.list.d/spotify.list:1
W: Target Packages (non-free/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list.d/sources.list:1 and /etc/apt/sources.list.d/spotify.list:1
W: Target Packages (non-free/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/sources.list:1 and /etc/apt/sources.list.d/spotify.list:1
W: Target Translations (non-free/i18n/Translation-en_GB) is configured multiple times in /etc/apt/sources.list.d/sources.list:1 and /etc/apt/sources.list.d/spotify.list:1
W: Target Translations (non-free/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list.d/sources.list:1 and /etc/apt/sources.list.d/spotify.list:1
W: Target DEP-11 (non-free/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list.d/sources.list:1 and /etc/apt/sources.list.d/spotify.list:1
W: Target DEP-11 (non-free/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list.d/sources.list:1 and /etc/apt/sources.list.d/spotify.list:1
W: Target DEP-11-icons-small (non-free/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list.d/sources.list:1 and /etc/apt/sources.list.d/spotify.list:1
W: Target DEP-11-icons (non-free/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list.d/sources.list:1 and /etc/apt/sources.list.d/spotify.list:1
W: Target DEP-11-icons-hidpi (non-free/dep11/[email protected]) is configured multiple times in /etc/apt/sources.list.d/sources.list:1 and /etc/apt/sources.list.d/spotify.list:1
W: Target DEP-11-icons-large (non-free/dep11/icons-128x128.tar) is configured multiple times in /etc/apt/sources.list.d/sources.list:1 and /etc/apt/sources.list.d/spotify.list:1
W: Target CNF (non-free/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list.d/sources.list:1 and /etc/apt/sources.list.d/spotify.list:1
W: Target CNF (non-free/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list.d/sources.list:1 and /etc/apt/sources.list.d/spotify.list:1
W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target Translations (main/i18n/Translation-en_GB) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target DEP-11 (main/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target DEP-11 (main/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target DEP-11-icons-small (main/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target DEP-11-icons (main/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target DEP-11-icons-hidpi (main/dep11/[email protected]) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target DEP-11-icons-large (main/dep11/icons-128x128.tar) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target CNF (main/cnf/Commands-amd64) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
W: Target CNF (main/cnf/Commands-all) is configured multiple times in /etc/apt/sources.list.d/google-chrome.list:3 and /etc/apt/sources.list.d/google.list:1
E: The repository 'http://ppa.launchpad.net/gotwig/weekly/ubuntu bionic Release' does not have a Release file.
W: Updating from such a repository can't be done securely, and is therefore disabled by default.
W: See apt-secure(8) manpage for repository creation and user configuration details
This is the message I get after opening the AppCenter app within a popup. Unfortunaly I don't get the errors there. Could someone advise me ? I yet reinstalled the AppCenter but it is all the same.
Regards.
