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 _7730d57e274d7b8e782eb97c8664e5cc.jkddzztszm.acm-validations.aws is not the root of its zone.
Instead, try zone transfer on jkddzztszm.acm-validations.aws .
Instead, try zone transfer on jkddzztszm.acm-validations.aws .