the server doesn't work

[arashsoftco]

Ign:1 http://apt.pm-codeworks.de wheezy InRelease Hit:2 http://raspbian.raspberrypi.org/raspbian buster InRelease Get:3 http://archive.raspberrypi.org/debian buster InRelease [32.6 kB]
Err:4 http://apt.pm-codeworks.de wheezy Release
404 Not Found [IP: 212.172.221.30 80] Reading package lists... Done
E: The repository 'http://apt.pm-codeworks.de wheezy 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.

[philippmeisberger]

You are trying to get packages for the outdated Debian Wheezy. The APT repository only contains packages for the previous and the current Debian release. At this moment the previous was Stretch and the current is Buster. Hence, what you are trying to do is not possible. Open the /etc/apt/sources.list.d/pm-codeworks.list and replace wheezy by either stretch or buster.