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 69f56464a476481ab5f942781f8f22d5.unbouncepages.com is not the root of its zone.
Instead, try zone transfer on unbouncepages.com .
Instead, try zone transfer on unbouncepages.com .