Ошибка БД

Error Number: 2006

MySQL server has gone away

SELECT k1.* FROM `songs` AS k1 JOIN ( SELECT (RAND() * (SELECT MAX(id) FROM `songs` WHERE 1 = 1 AND added <= UNIX_TIMESTAMP())) AS id ) AS k2 WHERE k1.id >= k2.id AND 1 = 1 AND k1.added <= UNIX_TIMESTAMP() ORDER BY k1.id ASC LIMIT 8

Filename: /home/admin/web/okesinger.ru/public_html/models/songs_model.php

Line Number: 43