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 ns1.p200.dns.eu-dcc-rome-1.oci.psn-pco-realm.it is not the root of its zone.
Instead, try zone transfer on eu-dcc-rome-1.oci.psn-pco-realm.it .
Instead, try zone transfer on eu-dcc-rome-1.oci.psn-pco-realm.it .