I have installed virtualmin and created a virtual server teluguinvestor.com. I have changed A records and NS records in my domain manger panel. But when I uploaded and pointed the site to digital ocean droplet, the webpage is displaying authentication box like at http://www.teluguinvestor.com/error.jpg
I have changed the name servers again to old hosting. Please suggest a solution so that I can again change my NS and A records to DO.