SELECT count( `w_id` ) AS sess,
			SUM( TIMESTAMPDIFF(MINUTE , `start` , `end` ) ) AS `minutesonsite`
			FROM `watcher_enter` WHERE `start` != `end` AND `user_hash` =  '21c4e28dc8e590a5b4016b40c37568c6';<br>Table './dom4m_kzru/watcher_enter' is marked as crashed and last (automatic?) repair failed