sfera-plesk-003.sfera.server.sferacloud.it 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 sfera-plesk-003.sfera.server.sferacloud.it is not the root of its zone.
Instead, try zone transfer on server.sferacloud.it .