on line WARNINGS HELP!

[Bozo]

Hi people,

http://tinyurl.com/yaxzjht
As you can see there are warnings (on line) above the website. Also when I upload pictures, those warnings (different ones) are visible. Can anyone help explaining why this is the cause and how I can remove those warnings from this script.
Help will be much appreciated.
Thanks!

 

[biochelo]

go to config.php

// Options //

$debug_mode = false; // false: Debug OFF - true: Debug ON.