I need to create two sub-domains and – i went to my domain name provider ( and was doing as told in ReadyMag manual, but unfortunately shows error (see picture in attachment)

** error says: “Hostname must match or be a subdomain of your domain name”. I can just add the subdomain name, i need to ad together with my domain name, then approves.

Unfortunately i don’t find in Readymag forum or learn page any tutorial how to fix this issue.

Can somebody please help me and guide how i can create and connect subdomains?

Thank you in advance.