Issue with Kite Publisher

Hi,
I have been using below code to place orders, been tested and working fine a week back or so.

$(".table > tbody  > tr:not(:first-child)").each(function () {
                    var Id = parseInt($(this).closest('tr').find('#item_Id').val());
                    var symbol = $(this).closest('tr').find('#item_Symbol').val();
                    var ordertype = $(this).closest('tr').find('.ordertypevalue').val();
                    var buyselloption = $(this).closest('tr').find('.buysellvalue').val();
                    var validity = $(this).closest('tr').find('.validityvalue').val();
                    var purchasetype = $(this).closest('tr').find('.purchasetypevalue').val();
                    var cicuitlimit = parseFloat($(this).closest('tr').find('.circuitlimitvalue').val()).toFixed(2);
                    var IsExcluded = $(this).closest('tr').find('.isexcluded').prop('checked');
                    var updownvalue = $(this).closest('tr').find('.updownvalue').val();
                    var quantity = parseInt($(this).closest('tr').find('.quantityvalue').val());
                    var currentprice = $(this).closest('tr').find('.currentprice').val();
                    var tenderprice = $(this).closest('tr').find('.tenderprice').val();
                    var OrderItemModel = { Id: Id, Validity: validity, Quantity: quantity, PType: purchasetype, Exclude: IsExcluded, CircuitLimit: cicuitlimit, OrderType: ordertype, BuySellType: buyselloption, UpDown: updownvalue, TargetPrice: tenderprice, CMP: currentprice, Symbol: symbol };
                    orders.push(OrderItemModel);
                });
                // 3. loop through each item & add to kite publisher
                // Initialize a new Kite instance.
                // You can initialize multiple instances if you need.
                var kite = new KiteConnect("api-key");

                orders.forEach(function (item) {
                    var price = item.TargetPrice - item.TargetPrice % 0.05 + ((item.TargetPrice % 0.05 < 0.05 / 2) ? 0.0 : 0.05);
                    if (!item.Exclude != false && item.Quantity != 0) {
                        kite.add({
                            "exchange": "NSE",
                            "tradingsymbol": item.Symbol,
                            "quantity": item.Quantity,
                            "price": parseFloat(price).toFixed(2),
                            "transaction_type": item.BuySellType,
                            "order_type": item.OrderType,
                            "product": item.PType,
                            "validity": item.Validity
                        });
                    }
                });
                kite.connect();

I am getting below error message

{"status":"error","message":"Invalid orders payload.","data":null,"error_type":"InputException"}