> For the complete documentation index, see [llms.txt](https://docs.cloud.debank.com/en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cloud.debank.com/en/readme/error-code/pre-exec-error-code.md).

# Pre exec error code

```
{
    "code": Code,
    "message": Reason
}
```

| Code | Reason                                |
| ---- | ------------------------------------- |
| 1000 | Unknown node error                    |
| 1002 | Contract Execution Error              |
| 2000 | Unknown api error                     |
| 2001 | balance is insufficient               |
| 2002 | Node service is currently unavailable |