Chevereto don't use a "loader.php", you may be using a third party mod or something, ask to the guy that sold you that.
Tech support is only for official releases and contributions.
As I said before, Chevereto don't load "loader.php". The chevereto loader is "chevereto.php". You are dealing with a problem caused by a non official modification, I can't give you support because you need to ask to the person that modified that for you.