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 35a5c8j3u4fbcvuqnj2dgdvievpi5t0b.shopfactory.io is not the root of its zone.
Instead, try zone transfer on shopfactory.io .
Instead, try zone transfer on shopfactory.io .