[中文](../cn/errorcode.md) | Enlish

<h1 align="center">Error Code </h1>
<p align="center" class="version">Version 0.7.0 </p>

| Return Code | Description                   | Explanation                                     |
| :----       | ----------------------------- | -----------------                                |
| 0           | SUCCESS                       | Success                                          |
| 41001       | SESSION_EXPIRED               | Invalid session or timeout (need to login again) |
| 41002       | SERVICE_CEILING               | Reach the service limit                          |
| 41003       | ILLEGAL_DATAFORMAT            | Illegal data format                              |
| 42001       | INVALID_METHOD                | Invalid method                                   |
| 42002       | INVALID_PARAMS                | Invalid parameters                               |                                   |
| 43001       | INVALID_TRANSACTION           | Invalid transaction                              |
| 43002       | INVALID_ASSET                 | Invalid asset                                    |
| 43003       | INVALID_BLOCK                 | Invalid block                                    |
| 44001       | UNKNOWN_TRANSACTION           | Transaction not found                             |
| 44002       | UNKNOWN_ASSET                 | Asset not found                                   |
| 44003       | UNKNOWN_BLOCK                 | Block not found 
| 44004 		 | UNKNWN_CONTRACT               | Contract not found                                                   |
| 45001       | INTERNAL_ERROR                | Internal error                                   |
| 47001 | SMARTCODE_ERROR| Smart contract error |
| 51000 | UNKNOWN_ONTID  | Unknown ONT ID |
| 52000 | NETWORK_ERROR  | Network error |
| 53000 | Decrypto_ERROR | Decryption error |                       | 
