Discuz! info: MySQL Query Error

Time: 2019-4-20 2:59am
Script: /index.php

SQL: SELECT * FROM [Table]crons WHERE available>'0' AND nextrun<='1555700389' LIMIT 1
Error: Table './jessica/[Table]crons' is marked as crashed and should be repaired
Errno.: 145

Similar error report has beed dispatched to administrator before.