Not an apex domain
The domain 86E7D4355A00F275822F4FE0CC191EDD.36238FF8965986A162C02A4E6CB70ECD.55EyFWC55lV4YL35neQ6.sectigo.com is not the root of its zone.
Instead, try zone transfer on sectigo.com .
Instead, try zone transfer on sectigo.com .