So I have my wordpress installed like usual, and then I make sure I have my domain pointed at the the server ip. Once all set up, I test it out by opening a new tab, and typing http://www.shorescraft.us/mainpage. (mainpage is the name of my wordpress directory file by the way.) Instead of getting the heart-warming "Hello World!" on the "mainpage", I get an error page that says "Error establishing a database connection". I don't know what I did wrong?