وقتی که می خوام مخازن رو با دستور sudo apt update
اپدیت کنم این ارور رو می ده:
Hit:1 http://ir.archive.ubuntu.com/ubuntu focal InRelease
Ign:2 http://ppa.launchpad.net/leaeasy/dde/ubuntu focal InRelease
Hit:3 http://ir.archive.ubuntu.com/ubuntu focal-updates InRelease
Hit:4 http://security.ubuntu.com/ubuntu focal-security InRelease
Hit:5 http://dl.google.com/linux/chrome/deb stable InRelease
Hit:6 http://ir.archive.ubuntu.com/ubuntu focal-backports InRelease
Hit:7 http://deb.fdmpkg.org bionic InRelease
Hit:8 http://ppa.launchpad.net/nm-l2tp/network-manager-l2tp/ubuntu focal InRelease
Err:9 http://ppa.launchpad.net/leaeasy/dde/ubuntu focal Release
404 Not Found [IP: 91.189.95.83 80]
Reading package lists... Done
E: The repository 'http://ppa.launchpad.net/leaeasy/dde/ubuntu focal 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