Catchable fatal error: Argument 1 passed to Shop_Model_Products::saveRecentlyViewed() must be an instance of Zend_Db_Table_Row, null given, called in /var/www/kulerservice/data/www/kulerservice.com/app/Shop/Controller/Index.php on line 273 and defined in /var/www/kulerservice/data/www/kulerservice.com/app/Shop/Model/Products.php on line 842