http://apt.armbian.com bookworm Release' does not have a Release file

steakhutzeee@dk:~$ sudo apt update
[sudo] password for steakhutzeee:
Get:1 file:/var/cache/openmediavault/archives  InRelease
Ign:1 file:/var/cache/openmediavault/archives  InRelease
Get:2 file:/var/cache/openmediavault/archives  Release
Ign:2 file:/var/cache/openmediavault/archives  Release
Get:3 file:/var/cache/openmediavault/archives  Packages
Ign:3 file:/var/cache/openmediavault/archives  Packages
Get:4 file:/var/cache/openmediavault/archives  Contents (deb)
Ign:4 file:/var/cache/openmediavault/archives  Contents (deb)
Get:5 file:/var/cache/openmediavault/archives  Contents (deb)
Ign:5 file:/var/cache/openmediavault/archives  Contents (deb)
Get:3 file:/var/cache/openmediavault/archives  Packages
Ign:3 file:/var/cache/openmediavault/archives  Packages
Get:4 file:/var/cache/openmediavault/archives  Contents (deb)
Ign:4 file:/var/cache/openmediavault/archives  Contents (deb)
Get:5 file:/var/cache/openmediavault/archives  Contents (deb)
Ign:5 file:/var/cache/openmediavault/archives  Contents (deb)
Get:3 file:/var/cache/openmediavault/archives  Packages
Ign:3 file:/var/cache/openmediavault/archives  Packages
Get:4 file:/var/cache/openmediavault/archives  Contents (deb)
Ign:4 file:/var/cache/openmediavault/archives  Contents (deb)
Get:5 file:/var/cache/openmediavault/archives  Contents (deb)
Ign:5 file:/var/cache/openmediavault/archives  Contents (deb)
Get:3 file:/var/cache/openmediavault/archives  Packages
Ign:3 file:/var/cache/openmediavault/archives  Packages
Get:4 file:/var/cache/openmediavault/archives  Contents (deb)
Ign:4 file:/var/cache/openmediavault/archives  Contents (deb)
Get:5 file:/var/cache/openmediavault/archives  Contents (deb)
Ign:5 file:/var/cache/openmediavault/archives  Contents (deb)
Get:3 file:/var/cache/openmediavault/archives  Packages
Ign:3 file:/var/cache/openmediavault/archives  Packages
Get:4 file:/var/cache/openmediavault/archives  Contents (deb)
Ign:4 file:/var/cache/openmediavault/archives  Contents (deb)
Get:5 file:/var/cache/openmediavault/archives  Contents (deb)
Ign:5 file:/var/cache/openmediavault/archives  Contents (deb)
Get:3 file:/var/cache/openmediavault/archives  Packages
Ign:3 file:/var/cache/openmediavault/archives  Packages
Get:4 file:/var/cache/openmediavault/archives  Contents (deb)
Ign:4 file:/var/cache/openmediavault/archives  Contents (deb)
Get:5 file:/var/cache/openmediavault/archives  Contents (deb)
Ign:5 file:/var/cache/openmediavault/archives  Contents (deb)
Get:3 file:/var/cache/openmediavault/archives  Packages
Get:4 file:/var/cache/openmediavault/archives  Contents (deb)
Ign:4 file:/var/cache/openmediavault/archives  Contents (deb)
Get:5 file:/var/cache/openmediavault/archives  Contents (deb)
Ign:5 file:/var/cache/openmediavault/archives  Contents (deb)
Hit:6 http://deb.debian.org/debian bookworm InRelease
Hit:7 http://deb.debian.org/debian bookworm-updates InRelease
Hit:8 http://httpredir.debian.org/debian bookworm-backports InRelease
Hit:9 http://security.debian.org/debian-security bookworm-security InRelease
Hit:10 http://packages.openmediavault.org/public sandworm InRelease
Hit:11 https://download.docker.com/linux/debian bookworm InRelease
Hit:12 https://openmediavault-plugin-developers.github.io/packages/debian sandworm InRelease
Get:13 https://openmediavault.github.io/packages sandworm InRelease [12.8 kB]
Hit:14 https://github.armbian.com/configng stable InRelease
Ign:15 http://armbian.systemonachip.net/apt bookworm InRelease
Err:16 http://armbian.systemonachip.net/apt bookworm Release
404  Not Found [IP: 46.102.157.202 80]
Reading package lists... Done
E: The repository 'http://apt.armbian.com bookworm 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.
steakhutzeee@dk:~$