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 'for-sale and session_id = "u91p8n56lqvj0rs5jiqbdenc05"' at line 1: SELECT * FROM reservas   WHERE propiedad_fk = business-premises-for-sale and session_id = "u91p8n56lqvj0rs5jiqbdenc05"