Discuz! info: MySQL Query Error

Time: 2015-7-6 1:27am
Script: /discuz/redirect.php

SQL: SELECT f.* , t.* FROM cdb_forums f, cdb_threads t WHERE t.tid='462923' AND f.fid=t.fid LIMIT 1
Error: Table '.\discuz\cdb_threads' is marked as crashed and should be repaired
Errno.: 145

Similar error report has beed dispatched to administrator before.