Erreur MySQL : 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 'c '' AND b.lg = 'fr'' at line 1

Requête originale : SELECT a.type, a.position, b.page_id FROM wagaia_pages_data b left join wagaia_pages a on a.id = b.page_id where b.nav_url='' c '' AND b.lg = 'fr'