RapidWeaver 7.5.5 Error Message

When I Purchased RapidWeaver it was in the web download folder, I have since moved it to the document folder, and I renamed the website, and now the preview button is working. I am having problems with the hosting company called, dot5hosting. I have all of the information concerning their server right, but I’m still getting an error message saying that rapid Weaver cannot connect with their server.