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 ipagstaticip-6cf6b4bc-2e79-4ecd-48fa-97603ce90170.sdsl.bell.ca is not the root of its zone.
Instead, try zone transfer on sdsl.bell.ca .
Instead, try zone transfer on sdsl.bell.ca .