http://turbogunz.x10hosting.com/ Internal Server Error

[Poi$on]

HTTP 500 Internal Server Error !

What should i do ?

[Poi$on]

Sry, i forgot, all files have CMOD 755 !

And still not working

[Derek]

Try to CHMOD your index page to 777.

[eminemix]

I got the same problem and solved it after i upgrated to the "Intermediate PHP Configuration".
If your site worked before the php upgrade, you should do that too.