SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl2): Invalid SQL: SELECT s.*, u.username,u.marc, u.invisible, u.useronlinegroupid,g.useronlinemarking, 0 AS script, a.avatarid, a.avatarextension, a.width, a.height FROM bb1_sessions s LEFT JOIN bb1_users u USING (userid) LEFT JOIN bb1_avatars a ON (a.avatarid=u.avatarid) LEFT JOIN bb1_groups g ON g.groupid=u.useronlinegroupid WHERE s.lastactivity >= '1328584174' ORDER BY lastactivity DESC
mysql error: Unknown column 'u.marc' in 'field list'
mysql error number: 1054
mysql version: 5.1.49-3
php version: 5.3.3-7+squeeze3
Date: 07.02.2012 @ 04:24
Script: /vgn/wbb2/wiw.php
Referer: