Stacer
Stacer copied to clipboard
Release file missing
E: The repository 'http://ppa.launchpad.net/oguzhaninan/stacer/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.
please use the official package instead? https://packages.ubuntu.com/search?keywords=stacer