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 E3C82B60-7FA3-11EE-9C6D-FA0CAC207F0E._domainkey.nxpt.ro is not the root of its zone.
Instead, try zone transfer on nxpt.ro .
Instead, try zone transfer on nxpt.ro .