> ## Documentation Index
> Fetch the complete documentation index at: https://docs.prelude.so/llms.txt
> Use this file to discover all available pages before exploring further.

# Troubleshooting errors (V1 API)

> This page presents how to handle errors with our Legacy Lookup API, V1.

<Warning>
  The V1 API is **deprecated**. It receives no support and no new features nor functionality. Please use the [V2 Lookup API](/intel/v2/documentation/introduction) instead.
</Warning>

## Codes

Below is a list of possible error codes, along with additional information about how to resolve them.

| Code                      | Description                                                                                                 |
| ------------------------- | ----------------------------------------------------------------------------------------------------------- |
| `account_invalid`         | The provided customer UUID is invalid.                                                                      |
| `internal_server_error`   | An internal server error occurred.                                                                          |
| `invalid_phone_number`    | This is not a valid E.164 number.                                                                           |
| `negative_balance`        | You have a negative balance.                                                                                |
| `spending_limit_exceeded` | The spending limit for a time period has been exceeded. You can set the spending limits from the Dashboard. |
| `suspended_account`       | Your account has been suspended.                                                                            |
| `unsupported_region`      | Prelude does not support this region yet.                                                                   |