> For the complete documentation index, see [llms.txt](https://docs.nftrainbow.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.nftrainbow.xyz/about-the-apis/error-codes.md).

# Error codes

Most errors in Rainbow-API include an error code and a brief explanation.

The possible errors containing the `error codes`, `status code` and how to fix them are listed in the following.  

### Auth Errors

| ERROR CODE | ERROR MESSAGE                     | EXPLANATION                                                                                          |
| ---------- | --------------------------------- | ---------------------------------------------------------------------------------------------------- |
| 40100      | `Unauthorized`                    | The account does not have the access to kyc file. Please validate your information.                  |
| 40101      | `Unauthorized, invalid JWT token` | The JWT token is invalied. Please use the correct JWT                                                |
| 40102      | `Authorization header is empty`   | The Authorization header is empty. Please add it.                                                    |
| 40103      | `Authorization token is invalid`  | Your authorization token is invalid. Please use the correct JWT.                                     |
| 40104      | `Token is expired`                | Your JWT is expired. Please call refresh JWT to get a new JWT.                                       |
| 40105      | `KYC required`                    | Your personal information has not been validated. Please validate your information.                  |
| 40106      | `No permission to access`         | Your account does not have the permission to access the kyc files. Please validate your information. |
| 40107      | `Auth header is empty`            | Your auth header is empty. Please add the JWT.                                                       |
| 40108      | `Missing exp field`               | The expired time is missing. Please add it.                                                          |
| 40109      | `Exp must be float64 format`      | The expired time should be float64.                                                                  |
| 40110      | `Jwt payload content uncorrect`   | The payload content uncorrect. Please correct it.                                                    |

{% hint style="info" %}
**Note:** The character `*` means the error message is not stationary. It depends on the detailed error. Please refer the detailed error message.
{% endhint %}

### Validation Errors

<table><thead><tr><th width="244.68851346338153">ERROR CODE</th><th width="239.33333333333331">ERROR MESSAGE</th><th>EXPLANATION</th></tr></thead><tbody><tr><td>40000</td><td><code>Invalid request</code></td><td>Your request is invalid. Please check the parameters.</td></tr><tr><td>40001</td><td><code>Invalid app id</code></td><td>Your <code>appid</code> <em>is not valid. Please use the correct <code>app_id</code>.</em></td></tr><tr><td>40002</td><td><code>Invalid address</code></td><td>The input address is incorrect. Please check the address.</td></tr><tr><td>40003</td><td><code>Chain is not supported</code></td><td>The chain type is not supported. The chain type includes <code>conflux</code> and <code>conflux_test</code>.</td></tr><tr><td>40004</td><td><code>Contract type is not supported</code></td><td>The contract type does not be supported. The supported contract type includes <code>ERC721</code> and <code>ERC1155</code>.</td></tr><tr><td>40005</td><td><code>Invalid url</code></td><td>The url path is not true. Please check the url again.</td></tr><tr><td>40006</td><td><code>Invalid metadataId</code></td><td>The metadataID is not true. The length of the metadataid should be 64.</td></tr><tr><td>40007</td><td><code>Invalid mint amount, mint amount could not be 0</code></td><td>The mint amount is invalied. Please set the mint amount again.</td></tr><tr><td>40008</td><td><code>Invalid mint amount, mint amount could not more than 1 for erc 721 contract</code></td><td>The mint amount is invalied. Please set the mint amount again.</td></tr><tr><td>40009</td><td><code>Invalid token ID</code></td><td>The token id is invalied. Please check the token id again.</td></tr><tr><td>40010</td><td><code>Contract type and contract address not match</code></td><td>The contract type and contract address do not match. Please check the contract type again.</td></tr><tr><td>40011</td><td><code>Invalid page or limit</code></td><td>The page or limit are invalid. The parameters should be integer.</td></tr></tbody></table>

### Conflict Errors

<table><thead><tr><th>ERROR CODE</th><th width="293.3333333333333">ERROR MESSAGE</th><th>EXPLANATION</th></tr></thead><tbody><tr><td>40900</td><td><code>Conflict</code></td><td></td></tr><tr><td>40901</td><td><code>company already exists</code></td><td>The company has been validated by other accounts. Please use another one.</td></tr></tbody></table>

### Ratelimit Errors

<table><thead><tr><th>ERROR CODE</th><th width="293.3333333333333">ERROR MESSAGE</th><th>EXPLANATION</th></tr></thead><tbody><tr><td>42900</td><td><code>Too many requests</code></td><td>Too many requests are sent in the meantime. Please reduce the number of requests.</td></tr></tbody></table>

### Internal Server Errors

| ERROR CODE | ERROR MESSAGE              | EXPLANATION                                                        |
| ---------- | -------------------------- | ------------------------------------------------------------------ |
| 50000      | `Internal Server error`    | <p>There are errors in the </p><p>internal server.</p>             |
| 50001      | `database operation error` | The databse operation is not correct. Please check your operation. |
| 50002      | \*                         | The data does not been found in the database.                      |

### Business Errors

<table><thead><tr><th>ERROR CODE</th><th width="293.3333333333333">ERROR MESSAGE</th><th>EXPLANATION</th></tr></thead><tbody><tr><td>60000</td><td><code>Business error</code></td><td>The transactions have not been processed. Please wait.</td></tr><tr><td>60001</td><td><code>Mint limit exceeded</code></td><td>The number of minted NFTs exceed the limits. Please reduce the number of the minted NFTs.</td></tr><tr><td>60002</td><td><code>Deploy limit exceeded</code></td><td>The number of deployed contracts exceed the limits. Please reduce the number of the deployed contracts.</td></tr><tr><td>60003</td><td><code>Uploade file limit exceeded</code></td><td>The number of uploaded files exceed the limits. Please reduce the number of the uploaded files</td></tr><tr><td>60004</td><td><code>Contract has no sponsor</code></td><td>Your contract has no sponsor. Please set the sponsor first.</td></tr><tr><td>60005</td><td><code>Contract sponsor balance not enough</code></td><td>The sponsor balance is not enough. Please connect to the sponsor.</td></tr><tr><td>60006</td><td><code>Contract has no sponsor for application admin</code></td><td>The contract has not sponsors.</td></tr><tr><td>60007</td><td><code>Only admin can reset admin</code></td><td>Only the app admin can reset the contract admin.</td></tr><tr><td>60008</td><td><code>Contract is not belong to this application</code></td><td>Contract does not belong to the application.</td></tr><tr><td>60009</td><td><code>Contract not exist</code></td><td>The contract does not exist. Please use the correct one.</td></tr></tbody></table>