56o4ic6bsv1dr725sl14qdd1r7drvj5b.mylib.eu 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 56o4ic6bsv1dr725sl14qdd1r7drvj5b.mylib.eu is not the root of its zone.
Instead, try zone transfer on mylib.eu .