kell-vultr.ANKH.FR.EU.ORG. 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 kell-vultr.ANKH.FR.EU.ORG. is not the root of its zone.
Instead, try zone transfer on ANKH.FR.EU.ORG .