SELECT count( `w_id` ) AS sess,
			SUM( TIMESTAMPDIFF(MINUTE , `start` , `end` ) ) AS `minutesonsite`
			FROM `watcher_enter` WHERE `start` != `end` AND `user_hash` =  '51b6cda246501090a4bd3d4105afea30';<br>Table './dom4m_kzru/watcher_enter' is marked as crashed and last (automatic?) repair failed