Does not work this way
Your domain needs to be to set to ns1.epizy.com and ns2.epizy.com from your registrar first.
Once done you should be able to add domain to hosting account
Then follow this guide this guide to use CloudFlare
Does not work this way
Your domain needs to be to set to ns1.epizy.com and ns2.epizy.com from your registrar first.
Once done you should be able to add domain to hosting account
Then follow this guide this guide to use CloudFlare