initialize function not working as expected.

Hello I had following structure

class app_base extends Phalcon\Mvc\Controller
{
    public $__currentPage = 1;
    public $__request;

    public function initialize()
    {
        $this->__currentPage = $this->request->getQuery('page','int',1);
    }
}

class app_stage_base extends app_base
{
    public $stageUser = false;

    public function beforeExecuteRoute()
    {
        if(!$this->stageUser) {
            header("login");
        }

    }
    public function initialize()
    {
    }
}

class app_stage_module_model_base extends app_stage_base
{
    public function initialize()
    {
        parent::initialize();
        if(!$this->stageUser) {
            $this->response->redirect("login");
        }
    }
}

class OnlineController extends app_stage_module_model_base
{
    public function initialize()
    {
        parent::initialize();
    }

    public function indexAction()
    {
        $srv = new service_vmodel_online();
        $srv->initRooster();
        $srv->setRoom();
    }
}

$srv->setRoom(); needs session variable. If does not found throws a exception as usual.

How ever. when session expires.

    public function initialize()
    {
        parent::initialize();
        if(!$this->stageUser) {
            $this->response->redirect("login");
        }
    }

Was not working. Code executes to end and throws an exception.

Could anyone lead me to correct this problem.

My Best regards.