src/CarteBlanche/Controller/DefaultController.php
public function bootErrorAction(array $errors = null)
    {
        $session = $this->getContainer()->get('session');
        $original_errors = $session->has('boot_errors') ? $session->get('boot_errors') : $errors;
        $running_user = $this->getKernel()->whoAmI();

        return array(self::$views_dir.'errors', array(
            'title'=>$this->trans('System errors'),
            'original_errors'=>$original_errors,
            'running_user' => $running_user,
            'errors'=>$errors
        ));
    }
public function bootErrorAction(array $errors = null)
    {
        $session = $this->getContainer()->get('session');
        $original_errors = $session->has('boot_errors') ? $session->get('boot_errors') : $errors;
        $running_user = $this->getKernel()->whoAmI();

        return array(self::$views_dir.'errors', array(
            'title'=>$this->trans('System errors'),
            'original_errors'=>$original_errors,
            'running_user' => $running_user,
            'errors'=>$errors
        ));
    }
Page of system errors

@param   null|array  $errors
@return  array