lo0-0.office-firewall.dc1.man4.uk.m247.ro 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 lo0-0.office-firewall.dc1.man4.uk.m247.ro is not the root of its zone.
Instead, try zone transfer on m247.ro .