Need help setting mozello site secure

Our domain creadvisors co is pointed to www.creadvisors.mozello.com
How do I enable https to show when going to creadvisors.co

Can’t seem to get this to work on cloudflare using the subdomain
creadvisors mozello com

None of those hostnames are using Cloudflare or Cloudflare DNS. Whatever you want to add to Cloudflare needs to be running with HTTPS beforehand.