Hi there, can you clarify does the error occur when you click the "Create a New Project" link on the admin page or when you have filled in your database details and press Go ..
If it is the first one, are you able to paste me the link the Create A New Project refers to? either by hovering over it or
If it is the second do you know how to go into the browser debug ( CTRL+SHIFT+I on chrome ) and click network tab a show me the link produced when you click on Go..
Another question are you on windows, mac, linux?