MySQL error in file: /engine/modules/calendar.php at line 167

Error Number: 1146

The Error returned was:
Table 'zaytun.dle_post' doesn't exist

SQL query:

SELECT DISTINCT DAYOFMONTH(date) as day FROM dle_post WHERE date >= '2021-02-01' AND date < '2021-02-01' + INTERVAL 1 MONTH AND approve=1 AND date < '2021-02-25 09:21:34'