Fatal error: Uncaught mysqli_sql_exception: 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 ') AND ((ventas.id_venta_tipo)=)) ORDER BY ventas.tiempo ASC' at line 1 in C:\xampp\htdocs\intranet_api\database.php:75 Stack trace: #0 C:\xampp\htdocs\intranet_api\database.php(75): mysqli_query(Object(mysqli), 'SELECT ventas.s...') #1 C:\xampp\htdocs\intranet_api\clases\listados_ventas.php(127): database->query() #2 C:\xampp\htdocs\intranet_api\ventas\listado_ventas.php(28): listados_ventas->crear_json_listado_ventas(NULL, NULL, 0) #3 {main} thrown in C:\xampp\htdocs\intranet_api\database.php on line 75