{"error": "Parameter draw is missing"}

[evollution]

Hi ,
I am using this code:

 @amazon.route("/data")`
  def datatables():
     table = DataTable(request.args, Order, db.session.query(Order), [
         "id",
         ("AmazonOrderId", "AmazonOrderId"),
         ("OrderStatus", "OrderStatus"),
     ])
return json.dumps(table.json())

But i get {"error": "Parameter draw is missing"}. what am I doing wrong?