Debian/Ubuntu Repo doesn't work

Myself and my colleague have tried to install CrateDB from the Ubuntu and Debian instructions but it does not work. We don’t want to use Docker and the only way we have been able to try the database is to use the quick start script.

Posting this for advice or to let you know your documentation/install system has a problem.

My OS is Kubuntu 21.10 x86_64

Ign:9 https://cdn.crate.io/downloads/deb/stable $(lsb_release InRelease
Ign:10 https://cdn.crate.io/downloads/deb/stable impish InRelease
Err:11 https://cdn.crate.io/downloads/deb/stable $(lsb_release Release
  404  Not Found [IP: 199.232.9.169 443]
Err:12 https://cdn.crate.io/downloads/deb/stable impish Release
  404  Not Found [IP: 199.232.9.169 443]