I get "Service not available temporarily, please try it later." error from kucoin API

Question

I write this code for placing order in kucoin:

            var client = new KucoinClient(new KucoinClientOptions()
            {
                FuturesApiOptions = new KucoinRestApiClientOptions
                {

                    ApiCredentials = new KucoinApiCredentials("629d76bxxxxxxx001dfdaef", "c8bd3ab2-xxxx-xxx-9ce2-5f40bd9fa0e3", "xxxxxxxxxxxx"),
                    AutoTimestamp = false
                }
            });

            var result = client.FuturesApi.Trading.PlaceOrderAsync("ETH Perpetual/USDT",
Kucoin.Net.Enums.OrderSide.Buy, NewOrderType.Limit, 1, 2, 4).Result;

but I get error:

Service not available temporarily, please try it later.

Where is my mistake?

Answer 1

I think it's an internal error because its status is 500.