Error in image uploading?

[EliteGamers]

http://ihs.elite-gamers.it/image/J3
As you can see in this link, i receive a "little window" when i click upload, the upload is Ok, but this window is awful.

 

[Gunz]

You must disable php show log on config in chevereto.

 

[Rodolfo]

set error_reporting false on config.php

 

[EliteGamers]

Thanks!!