internal_server_error

err:frontline:platform:internal_server_error

Something failed on our side, inside Unkey’s gateway. It isn’t caused by the request or by the owner’s configuration. You get 500 Internal Server Error.

Example response

{
  "meta": {
    "requestId": "req_3k2j1h0g9f8e7d6c"
  },
  "error": {
    "code": "err:frontline:platform:internal_server_error",
    "message": "An unexpected error occurred. Please try again later."
  }
}

Browsers get the same error as an HTML page.

If you’re calling an API hosted on Unkey

Retry with backoff if the request is safe to repeat. If it keeps failing, contact the API owner or Unkey support with the request ID.

If you own this API

Nothing in your deployment causes this.

How to fix

There’s nothing to change on your side. If it lasts more than a few minutes, check the Unkey status page and contact support with a few request IDs and the hostname.

err:frontline:platform:config_load_failed: the gateway couldn’t load the app’s configuration.
err:frontline:upstream:bad_gateway: the connection to your app failed, rather than the gateway itself.

Last modified on October 6, 2026

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internal_server_error

If you’re calling an API hosted on Unkey

If you own this API

How to fix

​If you’re calling an API hosted on Unkey

​If you own this API

​How to fix

​Related errors

If you’re calling an API hosted on Unkey

If you own this API

How to fix

Related errors