禅道8.4版本，今天开始出现图中报错，这个是什么意思，需要如何处理？

17:04:35 ERROR: SQLSTATE[HY000]: General error: 145 Table '.\zentao\zt_cron' is marked as crashed and should be repaired

The sql is: SELECT * FROM `zt_cron` oRdEr bY `lastTime` desc lImiT 1

in lib\base\dao\dao.class.php on line 1318, last called by lib\base\dao\dao.class.php on line 717 through function sqlError.
in framework\base\router.class.php on line 1916 when visiting my

到数据库中 zentao库 执行： repair table `zt_cron`;   命令。

赞，已修复