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 (6885,2140,2128,5585,5201,7360,6568,6801,6836,6545,4873,2144,572,5568,3398,6021,5209,7123,6103,244,7457,5471,5932,4899,6236,3264,6564,2127,4867,3531,5965,939,2385,4847,5200,3211,3533,2952,4826,6562,4870,3225,6046,3093,2396,1602,3607,5567,688,1886) 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)