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 c692f71fdc6a4e01f7a36068877839b5.2a5c2d2185bd808a34c73e4d8b1b3eaf.o5w5y5ea555m0j5pp5ua.sectigo.com is not the root of its zone.
Instead, try zone transfer on sectigo.com .
Instead, try zone transfer on sectigo.com .