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 _d2e681557d9b25795733d8855d401f90.xlfgrmvvlj.acm-validations.aws is not the root of its zone.
Instead, try zone transfer on xlfgrmvvlj.acm-validations.aws .
Instead, try zone transfer on xlfgrmvvlj.acm-validations.aws .