MySQL database error

mysql error: Illegal mix of collations (hebrew_general_ci,IMPLICIT) and (latin1_swedish_ci,COERCIBLE) for operation '='

Query Failure: SELECT `id` FROM `category` WHERE `pageid` = 'דירות_דיסקרטיות'
mysql error number: 1267
Date: 28-07-2014 23:25:56
Script: http://sexforfree.co.il/index.php
IP Address: 23.20.50.20