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 dg1o8b0m3je01nsg9joaj8ltafatreh6.shopfactory.io is not the root of its zone.
Instead, try zone transfer on shopfactory.io .
Instead, try zone transfer on shopfactory.io .