# internal_error

**Unexpected error on our side.**

| | |
|---|---|
| HTTP status | `500` |
| `code` | `internal_error` |
| Retry? | Yes, after a delay |

## What it means

Something went wrong on our side. It is not caused by your request.

## How to fix it

Retry with increasing delays (for example after 1, 5 and 30 seconds). `PUT` and `DELETE` are safe to retry. If it persists, write to support@kalender-sync.de and include the `request_id`.

## Example

```json
{
  "type": "https://docs.kalender-sync.de/en/api/errors/internal_error",
  "title": "Internal error",
  "status": 500,
  "code": "internal_error",
  "request_id": "req_…"
}
```

→ [All error codes](https://docs.kalender-sync.de/en/api/errors/)