string(378) "Error: MySQL server has gone away<br />Error No: 2006<br />SELECT p.product_id FROM product p LEFT JOIN product_to_category p2c ON (p.product_id=p2c.product_id) LEFT JOIN product_to_store p2s ON (p.product_id = p2s.product_id) WHERE p2s.store_quantity > 0 and p.status = '1' AND p.date_available <= NOW() AND p2s.store_id = '0' AND p2c.category_id = '29' ORDER BY RAND() LIMIT 1"