MySQL error in file: /engine/modules/metatags.php at line 28

Error Number: 1064

The Error returned was:
You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'not detected AND approve=1' at line 1

SQL query:

SELECT COUNT(*) as count FROM dle_post WHERE category=not detected AND approve=1