Yesterday, I created a domain name with godaddy and set it up to point to the Heliohost name servers. I then greated an addon domain to my existing Heliohost account. I uploaded my new web page and verified it using File Manager. When I type in the domain name in the URL field of my browser I get the message "Not Found. The requested URL / was not found on this server. Additionally, a 404 Not Found error". I am using Firefox and I get a similar message using Internet Explorer. I am also using OpenDNS.
I set the domain up on the evening of April 9. I think there may have been system maintenance occurring at that time. The addon domain is clementineconner.com. I have no problem with my other addon domains.