Error Number: 126

Incorrect key file for table '/tmp/#sql_5ec_4.MYI'; try to repair it

SELECT * FROM (`t_shop`) JOIN `m_tiiki` ON m_tiiki.tiiki_id = t_shop.tiiki_id WHERE `offer_type` = 1 AND FIND_IN_SET('SS',`bonita_shop_level`) > 0 ORDER BY RAND() LIMIT 1