404 Not Found [IP: 80] - Connection error

I was just about to update the version of deconz when I ran the apt-get upgrade command and got the following error message:

Fehl:1 http://phoscon.de/apt/deconz buster/main armhf deconz armhf 2.21.02-raspbian-buster-stable
404 Not Found [IP: 80]
E: Fehlschlag beim Holen von http://phoscon.de/apt/deconz/pool/main/d/deconz/deconz_2.21.02-raspbian-buster-stable_armhf.deb 404 Not Found [IP: 80]

Can somebody help me?


Please stay with english.

I believe there’s no stable in Buster at this moment.