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 usp3feneiq2mfnp1jt3i2b55a8g4ob6a.maxnet.org.pl is not the root of its zone.
Instead, try zone transfer on maxnet.org.pl .
Instead, try zone transfer on maxnet.org.pl .