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 = "hijqr36gi1pv9mfn3715clk5n1"' at line 1: SELECT * FROM reservas WHERE propiedad_fk = business-premises-for-sale and session_id = "hijqr36gi1pv9mfn3715clk5n1"