SQL-DATABASE ERROR

Database error in WoltLab Burning Board: Invalid SQL: SELECT u.userid, u.username, u.invisible, u.receivepm, u.lastactivity, uf.* FROM bb1_users u, bb1_groups g LEFT JOIN bb1_userfields uf ON (u.userid=uf.userid) WHERE u.groupid = g.groupid AND g.ismod=1 ORDER BY u.username ASC
mysql error: Unknown column 'u.userid' in 'ON'
mysql error number: 1054
Date: 26.04.2025 @ 19:42
Script: /forum/team.php?sid=ba519ca5de8edf31ce871acc7567c946
Referer: