SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.2.1): Invalid SQL: SELECT * FROM bb2_sponsoren WHERE showsponsor_b=1 AND sponsorpartner=0 ORDER BY RAND() DESC
mysql error: Got error 28 from table handler
mysql error number: 1030
mysql version: 4.0.20-standard
php version: 4.3.8
Date: 02.01.2005 @ 01:55
Script: /profile/userid/162/modernboard.html
Referer: