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 39t7u3005pq0tt5prtspug0dggp8feuo.storagefactory.io is not the root of its zone.
Instead, try zone transfer on storagefactory.io .
Instead, try zone transfer on storagefactory.io .