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 _227ecce300507a1986a43783c00f4b8c.digital.qa.oi.com.br is not the root of its zone.
Instead, try zone transfer on mhbtsbpdnt.acm-validations.aws .
Instead, try zone transfer on mhbtsbpdnt.acm-validations.aws .