SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.1.3): Invalid SQL: SELECT itemid, albumid, title, imgpath FROM bb1_scrapbook_items WHERE threadid =
mysql error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1
mysql error number: 1064
mysql version: 5.5.17-0ubuntu1~lucid1~ppa3
php version: 5.4.15-1~lucid+1
Date: 20.05.2013 @ 05:14
Script: /anime-manga-japan/dn-watch-club/tokyo-magnitude-80_t16501/neuster-beitrag-im-thema/
Referer: