hi

I seem to have a weird problem with app_controller.
Website that I'm building has got a navigation system based on menu, that
get's it values from a database.
menu is built as an element, that uses Tree.php helper, modified by me.
below you can find my app_controller.php file:

class AppController extends Controller {

    var $helpers = array('Html', 'Tree');
    var $uses = array('Menu');

    function beforeRender(){
        # setting the menu right #
        $conditions['live']="1";
        $order='position ASC';
        $this->set('menu_t',
$this->Menu->findAllThreaded($conditions,null,$order));
        $this->set('menu', $this->Menu->findAll($conditions,null,$order));
        ##########################
    }

}

as far as it shows the menu in a correct manner on http://www.mywebsite.com/
it comes up with this error when I try to access an item from menu here:
http://www.mywebsite.com/pages/menu_item/

*Fatal error*: Call to a member function on a non-object in *
/homepages/24/d111656091/htdocs/CMS2/app/app_controller.php* on line *49

*line that it is refering to is :         $this->set('menu_t',
$this->Menu->findAllThreaded($conditions,null,$order));

I don't understand what is wrong with it - I tried to change my settings in
routes, but they don't seem to work, would be much gratefull if anyone would
be able to help

Thanks!
Kasia
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