Discuz! info: MySQL Query Error

Time: 2020-1-23 9:15pm
Script: /cia/index.php

SQL: DELETE FROM cdb_sessions WHERE sid='BQArok' OR lastactivity<(1579785327-900) OR ('0'<>'0' AND uid='0') OR (uid='0' AND ip1='3' AND ip2='227' AND ip3='2' AND ip4='246' AND lastactivity>1579785327-60)
Error: Incorrect key file for table 'cdb_sessions'; try to repair it
Errno.: 1034

Similar error report has beed dispatched to administrator before.