Error en la base de datos de WordPress: [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 'OR wpno_wpc_connections.connection_type = 'quiz-to-course' AND wpno_wpc_conne...' at line 1]
SELECT * FROM wpno_wpc_connections LEFT JOIN wpno_posts ON wpno_posts.ID=wpno_wpc_connections.post_from WHERE wpno_wpc_connections.connection_type = 'lesson-to-course' AND wpno_wpc_connections.post_to = OR wpno_wpc_connections.connection_type = 'quiz-to-course' AND wpno_wpc_connections.post_to = ORDER BY wpno_wpc_connections.menu_order asc