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 sa1.n80659d.rppp.jp is not the root of its zone.
Instead, try zone transfer on n80659d.rppp.jp .
Instead, try zone transfer on n80659d.rppp.jp .