Can’t get my website up

Hi, folks!

I'm trying to play a little bit with Databases and to get moving I started by using a script made by some scripter called 'Awe'(just to give credits) and then try to remake it by myself. The script is pretty easy to understand, as far from the eye of a newbie like mine.

Still, something went wrong when I uploaded the new .php and .css files into the directory:

Can't get my website up