Catchable fatal error: Argument 1 passed to Rocket_Service_Category::getCategoryChildren() must be an instance of Rocket\Entity\Category, null given, called in /home/chrisdq312/domains/boutsen.net/application/controllers/ProductsController.php on line 51 and defined in /home/chrisdq312/domains/boutsen.net/application/services/Category.php on line 50