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Database error in vBulletin 3.0.1:

Invalid SQL:
SELECT gamesessions.*, user.username, user.userid, games.*, games.title AS title FROM gamesessions AS gamesessions
LEFT JOIN user AS user ON user.userid = gamesessions.userid
LEFT JOIN games AS games ON gamesessions.gamename = games.shortname
WHERE (gamename='asteroids' AND score='5820') OR (gamename='pacman' AND score='53030') OR (gamename='snake' AND score='772') AND sessiontype=1 ORDER BY gamesessions.gamename DESC

mysql error: Got error 28 from table handler

mysql error number: 1030