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 = "nrkopbd6p8103nlr3c69636us0"' at line 1: SELECT * FROM reservas WHERE propiedad_fk = apartments-for-sale and session_id = "nrkopbd6p8103nlr3c69636us0"