Trouble setting up Subdomain "w" -


I’m having trouble setting up a subdomain I am able to set up many other types of subdomains - “”, “”. For whatever reason, I cannot set up OR

I get this error message: “Error message: This Domain already exists as a website. [404]”

Can anyone help me? I really need to set up

I’m getting same error

My guess is that it is related to www. being reserved