LBank Invalid signature "error_code": 10007

[Trumpeta2021]

Hello,

I have problem with sign to LBank. I tried to generate both of API verifications (RSA and HmacSHA256), but noone is working. Both returns error code 10007.
My code:

var api = await ExchangeAPI.GetExchangeAPIAsync<ExchangeLBankAPI>();
api.LoadAPIKeysUnsecure("my API Key", "my Secret Key");

var response = await api.GetAmountsAsync();

Did I vorget somethings?

Thank you