SELECT gt.position_id, gt.city_id, gt.caption, gt.seo_url, gt.parent_position_id parent_id, gt.cnt count, group_id, subgroup_id, section_id FROM ps_group_tree gt WHERE gt.position_type_id = 10 AND gt.city_id = 2 AND gt.group_id = 278 AND gt.subgroup_id = 0 order by group_id, subgroup_id limit 1MySQL server has gone away in query

in file /html/classes/db.class.php in line 151