3.1 Response Error Code
| code | msg | Remark |
|---|---|---|
| 00000 | ok | |
| A0000 | Client error | |
| A0001 | Signature error | |
| A0002 | Timestamp error | |
| A0003 | Parameter error | |
| A0004 | Card no existed | |
| A0005 | Duplicated request | |
| A0006 | balance is insufficient | |
| A0007 | insufficient privileges | |
| B0000 | Internal error | Contact administrator |
| B0001 | The system environment is abnormal | Contact administrator |
| C0000 | Error on 3rd party service | Contact administrator |