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 fa7f02ea05b71900d89c9ee7139e4285.52fbe135e87ea24b121686a8dd37bf64.em0q5ds5gacoj5l5rhe5.sectigo.com is not the root of its zone.
Instead, try zone transfer on sectigo.com .
Instead, try zone transfer on sectigo.com .