Error: Lost connection to MySQL server during query

SELECT COUNT(t1.`id`) FROM `dir_links` t1 LEFT JOIN `dir_link_categories` t2 ON t2.`id_link` = t1.`id` LEFT JOIN `dir_categories` t3 ON t2.`id_category` = t3.`id` WHERE ((CONCAT(`t1`.`url`,' ',`t1`.`title`,' ',`t1`.`description`) LIKE '%seogenetic%') ) AND `t1`.`status` = 'active'AND t3.`status` = 'active'