Question

apt-get not workking !

sudo apt update
Ign:1 http://ppa.launchpad.net/gezakovacs/ppa/ubuntu hirsute InRelease
Ign:3 http://ppa.launchpad.net/teejee2008/timeshift/ubuntu impish InRelease
Hit:2 http://kali.cs.nctu.edu.tw/kali kali-rolling InRelease
Hit:4 http://kali.cs.nctu.edu.tw/kali kali-last-snapshot InRelease
Err:5 http://ppa.launchpad.net/gezakovacs/ppa/ubuntu hirsute Release
  404  Not Found [IP: 91.189.95.85 80]
Hit:6 http://kali.cs.nctu.edu.tw/kali kali-experimental InRelease
Err:7 http://ppa.launchpad.net/teejee2008/timeshift/ubuntu impish Release
  404  Not Found [IP: 91.189.95.85 80]
Reading package lists... Done
W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Translations (main/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target DEP-11 (main/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target DEP-11 (main/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target DEP-11-icons-small (main/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target DEP-11-icons (main/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Contents-deb (main/Contents-amd64) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Contents-deb (main/Contents-all) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Packages (non-free/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Packages (non-free/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Translations (non-free/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Translations (non-free/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target DEP-11 (non-free/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target DEP-11 (non-free/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target DEP-11-icons-small (non-free/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target DEP-11-icons (non-free/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Contents-deb (non-free/Contents-amd64) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Contents-deb (non-free/Contents-all) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Packages (contrib/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Packages (contrib/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Translations (contrib/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Translations (contrib/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target DEP-11 (contrib/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target DEP-11 (contrib/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target DEP-11-icons-small (contrib/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target DEP-11-icons (contrib/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Contents-deb (contrib/Contents-amd64) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Contents-deb (contrib/Contents-all) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
E: The repository 'http://ppa.launchpad.net/gezakovacs/ppa/ubuntu hirsute Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://ppa.launchpad.net/teejee2008/timeshift/ubuntu impish Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Translations (main/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target DEP-11 (main/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target DEP-11 (main/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target DEP-11-icons-small (main/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target DEP-11-icons (main/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Contents-deb (main/Contents-amd64) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Contents-deb (main/Contents-all) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Packages (non-free/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Packages (non-free/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Translations (non-free/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Translations (non-free/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target DEP-11 (non-free/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target DEP-11 (non-free/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target DEP-11-icons-small (non-free/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target DEP-11-icons (non-free/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Contents-deb (non-free/Contents-amd64) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Contents-deb (non-free/Contents-all) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Packages (contrib/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Packages (contrib/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Translations (contrib/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Translations (contrib/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target DEP-11 (contrib/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target DEP-11 (contrib/dep11/Components-all.yml) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target DEP-11-icons-small (contrib/dep11/icons-48x48.tar) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target DEP-11-icons (contrib/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Contents-deb (contrib/Contents-amd64) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2
W: Target Contents-deb (contrib/Contents-all) is configured multiple times in /etc/apt/sources.list:1 and /etc/apt/sources.list:2

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Hi there ,

It looks like that you are using PPA a which does not support your Ubuntu release:

Err:5 http://ppa.launchpad.net/gezakovacs/ppa/ubuntu hirsute Release
  404  Not Found [IP: 91.189.95.85 80]
Err:7 http://ppa.launchpad.net/teejee2008/timeshift/ubuntu impish Release
  404  Not Found [IP: 91.189.95.85 80]

What is the exact Ubuntu version that you are using? And also could you share the content of your /etc/apt/sources.list file here?

You would need to update the repository list accordingly to match your exact Ubuntu version.

Regards, Bobby