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

Error Number: 144

The Error returned was:
Table './c1biofakdb/dle_post' is marked as crashed and last (automatic?) repair failed

SQL query:

SELECT DISTINCT DAYOFMONTH(date) as day FROM dle_post WHERE date >= '2016-05-01' AND date < '2016-05-01' + INTERVAL 1 MONTH