每当我 sudo apt-get update 时，我都会收到错误。以下是日志中的错误：
Err:13 http://ppa.launchpad.net/ehoover/compholio/ubuntu eoan Release
404 Not Found [IP: 91.189.95.83 80]
Err:14
http://ppa.launchpad.net/gnome-terminator/ppa/ubuntu eoan Release
404 Not Found [IP: 91.189.95.83 80]
Err:15
http://ppa.launchpad.net/pipelight/stable/ubuntu eoan Release
404 Not Found [IP: 91.189.95.83 80]
E: The repository 'http://ppa.launchpad.net/ehoover/compholio/ubuntu
eoan 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/gnome-terminator/ppa/ubuntu
eoan Release' …