Register subdomain

Hello, I have a domain on cloudflare godaddysites.com but I don’t own it. I want to register a subdomain (https://opticalinqustordonload.godaddysites.com/) as I own that website, can I get cloudflare to only proxy https://opticalinqustordonload.godaddysites.com/ and/or register the subdomain?

A post was merged into an existing topic: This zone is either not part of your account (Code: 1010)