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 mc05nj1h6sti6qm5tdii9as10ivmg9cq.webexchange.nu is not the root of its zone.
Instead, try zone transfer on webexchange.nu .
Instead, try zone transfer on webexchange.nu .