Same error while testing place_order() functionality

#place order
try:
    orderparams = {
        # "variety": "NORMAL",
        "tradingsymbol": "DIL",
        "symboltoken": "8657",
        "exchange": "NSE",
        "transactiontype": "BUY",
        "ordertype": "MARKET",
        "producttype": "CNC",
        "price": "7.8",
        "duration": "DAY",
        "triggerprice" : "7.8",
        "squareoff": "9",
        "stoploss" : "5",
        "trailingStopLoss" : "0.1",
        "disclosedquantity" : '1',
        "quantity": "1",
        "ordertag" : "testing",
        }
    # Method 1: Place an order and return the order ID
    orderid = smartApi.placeOrder(orderparams)
    logger.info(f"PlaceOrder : {orderid}")
    # Method 2: Place an order and return the full response
    response = smartApi.placeOrderFullResponse(orderparams)
    logger.info(f"PlaceOrder : {response}")
except Exception as e:
    logger.exception(f"Order placement failed: {e}")

raise ex.DataException("Couldn't parse the JSON response received from the server: {content}".format(
    SmartApi.smartExceptions.DataException: Couldn't parse the JSON response received from the server: b''