13:53:40 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 D:\xampp\zentao\lib\base\dao\dao.class.php on line 1318, last called by D:\xampp\zentao\lib\base\dao\dao.class.php on line 717 through function sqlError.
in D:\xampp\zentao\framework\base\router.class.php on line 1932 when visiting bug-browse