Error in query: SELECT live.leonardo_live_groups.name as groupName , count(leonardo_live_flights.userID) as fNum FROM leonardo_live_flights, live.leonardo_live_user_groups ,live.leonardo_live_groups WHERE leonardo_live_flights.userID=live.leonardo_live_user_groups.userID AND live.leonardo_live_user_groups.groupID=live.leonardo_live_groups.groupID AND private=0 AND pointsNum > 5 AND LINEAR_DISTANCE > 30 AND lastPointTM > ( UNIX_TIMESTAMP() - 21600) GROUP BY live.leonardo_live_user_groups.groupID ORDER BY fNum desc