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 77B03396-99AC-11EE-A8C5-6CB65F6E6E7E._domainkey.pakt.ru is not the root of its zone.
Instead, try zone transfer on pakt.ru .
Instead, try zone transfer on pakt.ru .