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 14-139-68-102.reverse.airlinkzambia.xyz is not the root of its zone.
Instead, try zone transfer on airlinkzambia.xyz .
Instead, try zone transfer on airlinkzambia.xyz .