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 clause'
mysql error number: 1054
Date: 10.05.2024 @ 04:57
Script: /team.php?sid=6278b2d7f6df33d976c26fae292de7a9
Referer: