Ошибка в SQL запросе:
SELECT CONCAT(c.parent_url,c.url) AS category_url, p.url AS product_url, p.*, rate,
(p.price_course + p.price_course * (IFNULL(rate,0))) as `price_course`, p.currency_iso
FROM `mg_product` AS p
LEFT JOIN `mg_category` AS c ON c.id = p.cat_id
WHERE p.id IN (2145,2148,2154,3530,677,6476,933,665,2158,2159,2172,2156,2115,678,6832,6833,4898,3532,7455,3531,3399,4855,934,4820,3048,4886,3033,2127,6247,637,4973,6864,1609,4887,3533,4867,2180,6863,2409,4847,6045,3536,5655,7041,2186,6021,6044,6028,3225,1680) MySQL server has gone away
/var/www/meberry/data/www/meberry.ru/mg-core/lib/smalcart.php (line 82)
/var/www/meberry/data/www/meberry.ru/mg-core/lib/mg.php (line 605)
/var/www/meberry/data/www/meberry.ru/mg-core/lib/mg.php (line 1143)
/var/www/meberry/data/www/meberry.ru/mg-core/lib/mg.php (line 1228)
/var/www/meberry/data/www/meberry.ru/mg-core/lib/mg.php (line 1206)
/var/www/meberry/data/www/meberry.ru/mg-core/lib/mg.php (line 752)
/var/www/meberry/data/www/meberry.ru/mg-core/mg-start.php (line 53)
/var/www/meberry/data/www/meberry.ru/index.php (line 80)