MySQL error in file: /engine/modules/calendar.php at line 182

Error Number: 145

The Error returned was:
Table './bfbattleblog/dle_post' is marked as crashed and should be repaired

SQL query:

SELECT DISTINCT DAYOFMONTH(date) as day FROM dle_post WHERE date >= '2019-07-01' AND date < '2019-07-01' + INTERVAL 1 MONTH AND approve=1 AND date < '2019-07-18 08:07:13'