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 pub-62-171-102-62.static-lwl.datazug.ch is not the root of its zone.
Instead, try zone transfer on datazug.ch .
Instead, try zone transfer on datazug.ch .