E: The repository 'https://mirror.mva-n.net/mariadb/repo/10.5/ubuntu jammy Release' does not have a Release file

[eris]

The repository 'https://ftp.nluug.nl/db/mariadb/repo/10.4/ubuntu focal Release' no longer has a Release file

All the directory are empty: FTP archive directory /db/mariadb/repo/10.4/ubuntu/dists/focal/main/binary-amd64/

Lets keep the discussion in one topic