Err code

Error code	Description
0	Success
2	Parameter error
500	System error
100004	app-key not found
10016	User does not exist
70003	Missing Parameters
100008	Request expired
100005	Parameter signature error
10058	volume precision error
110041	Interface access times are too fast
110007	Withdrawal amount cannot be less than the current fee
110008	Only withdrawals to whitelisted addresses are allowed