The repository 'https://ppa.launchpadcontent.net/oguzhaninan/stacer/ubuntu jammy 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
The message:
The repository 'https://ppa.launchpadcontent.net/oguzhaninan/stacer/ubuntu jammy 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