MySQL server has gone away
SELECT * FROM (citys,place) JOIN `events` ON (events.event_place_id = place.place_id)AND(events.event_city = citys.id) WHERE `event_status`='1' AND `event_show` ='1' AND `event_date_end` BETWEEN '2020-04-05' AND '2021-04-05' ORDER BY `event_date` ASC LIMIT 3