Discuz! info: MySQL Query Error

Time: 2018-10-17 10:13am
Script: /discuz/index.php

SQL: SELECT f.fid, f.fup, f.type, f.name, ff.moderators, ff.extra FROM [Table]forums f LEFT JOIN [Table]forumfields ff ON ff.fid=f.fid WHERE f.fid='1'
Error: Unknown column 'ff.extra' in 'field list'
Errno.: 1054

Similar error report has been dispatched to administrator before.

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