Discuz! info: MySQL Query Error

Time: 2020-9-20 12:45pm
Script: /hkcdfamily/forum2/index.php

SQL: DELETE FROM cdb_sessions WHERE sid='munbmD' OR lastactivity<(1600577131-900) OR ('0'<>'0' AND uid='0') OR (uid='0' AND ip1='3' AND ip2='237' AND ip3='71' AND ip4='23' AND lastactivity>1600577131-60)
Error: Incorrect key file for table 'cdb_sessions'; try to repair it
Errno.: 1034

Similar error report has beed dispatched to administrator before.