Errors

Error codes & messages

Code	SubCode	Msg
10000		Success
10001		System error
10002		Parameter error
	22002	Fail to fetch quoted price due to 1. Invalid fiat currency 2. The amount of fiat currency is lower than gas fee. 3. The amount of crypto currency is out of limit.
	22006	Fail to fetch gas fee
	22010	Invalid crypto currency
	21011	Invalid fiat currency
	21012	Invalid payment method
100003		Signature error