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 a1a4c346a78ec04a7.awsglobalaccelerator.com is not the root of its zone.
Instead, try zone transfer on awsglobalaccelerator.com .
Instead, try zone transfer on awsglobalaccelerator.com .