static.100.162.217.95.clients.your-server.de IXFR zone transfer

Changes since SOA version

IXFR is a zone transfer request that returns changes since a specific SOA version. Enter the SOA version to request changes since then.

Not an apex domain The domain static.100.162.217.95.clients.your-server.de is not the root of its zone.
Instead, try zone transfer on 217.95.clients.your-server.de .