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 ns018-vu50aib6h0s4a6r1.v.d-53.net is not the root of its zone.
Instead, try zone transfer on v.d-53.net .
Instead, try zone transfer on v.d-53.net .