Error code definitions

<center>**Error code definitions**</center> <table> <thead> <tr> <th>Error code</th> <th>Description of error code</th> </tr> </thead> <tbody> <tr> <td>200</td> <td>success</td> </tr> <tr> <td>400</td> <td>Invalid parameter</td> </tr> <tr> <td>401</td> <td>signature mismatch</td> </tr> <tr> <td>403</td> <td>unauthorized,IP needs to be whitelisted</td> </tr> <tr> <td>404</td> <td>No data found</td> </tr> <tr> <td>405</td> <td>The request method is wrong, please check if the request method is consistent with the document, Post/Get</td> </tr> <tr> <td>500</td> <td>server error</td> </tr> <tr> <td>40001</td> <td>The payment platform does not support this currency</td> </tr> <tr> <td>40002</td> <td>The payment platform has closed the coin charging/withdrawal channel for this currency</td> </tr> <tr> <td>40003</td> <td>Merchants are frozen or closed</td> </tr> <tr> <td>40004</td> <td>The order has been cancelled</td> </tr> <tr> <td>40005</td> <td>The order has been paid and cannot be cancelled.</td> </tr> <tr> <td>40006</td> <td>The order has been completed and cannot be cancelled.</td> </tr> <tr> <td>40007</td> <td>No order was found</td> </tr> <tr> <td>40008</td> <td>The withdrawal order was not queried</td> </tr> <tr> <td>40009</td> <td>Merchant order number already exists</td> </tr> <tr> <td>40010</td> <td>Merchant withdrawal order number already exists</td> </tr> <tr> <td>40011</td> <td>Insufficient balance of merchant assets</td> </tr> <tr> <td>40012</td> <td>Coin withdrawal function has been turned off</td> </tr> <tr> <td>40013</td> <td>The amount of withdrawal is less than the minimum limit of a single transaction</td> </tr> <tr> <td>40014</td> <td>The amount of withdrawal is greater than the maximum amount of a single transaction</td> </tr> <tr> <td>40015</td> <td>The total amount of Japanese withdrawal exceeds the maximum limit</td> </tr> <tr> <td>40016</td> <td>Unpaid orders exceed the limit quantity</td> </tr> </tbody> </table>