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

# Error Codes

When an API call fails, RunComfy returns an HTTP error status and a JSON body that may include an `error_code` and message.

This page lists common errors you may see when calling **Serverless API (LoRA)**.

***

## 11007 InferenceServiceConnectionError

**Meaning:** The gateway could not reach the inference backend for your deployment.

**What to try:**

* Check the deployment is **enabled** and has capacity to start.
* If your deployment can scale to zero (`min_instances = 0`), the first request may need a **cold start** — retry after a short delay.
* If the problem persists, contact support with your `deployment_id` and `request_id`.

***

## 11008 InferenceServiceInferenceRequestError

**Meaning:** Your request was rejected as a client error (4xx).

**What to try:**

* Validate your payload against the deployment’s **input schema** (Deployment > API tab).
* For file inputs, make sure URLs are publicly accessible over HTTPS and do not require cookies/auth.

***

## 11004 InferenceServiceInferenceUnexpectedError

**Meaning:** The request could not be submitted due to an unexpected server-side error.

**What to try:**

* Retry with exponential backoff.
* If it repeats, share the full error response with support.

***

## 11011 InferenceServiceExecutionError

**Meaning:** The deployment started processing the request, but the run failed at execution time.

**What to try:**

* Inspect the error details returned by the API.
* Confirm that parameters (prompt, sizes, steps, etc.) are within the allowed ranges for your deployment.

***

## 11012 InferenceServiceRequestMissing

**Meaning:** The `request_id` could not be found (for example it expired, was never accepted, or tracking state was lost).

**What to try:**

* Confirm you are polling the correct deployment and `request_id`.
* Resubmit the request if needed.

***

## 11005 InferenceServicePollingResultUnexpectedError

**Meaning:** Status polling failed unexpectedly.

**What to try:**

* Retry after a short delay.
* If it persists, check deployment health in the dashboard.

***

## 11006 InferenceServiceResultRetrievalUnexpectedError

**Meaning:** Result retrieval failed unexpectedly.

**What to try:**

* Retry after a short delay (outputs may still be uploading).
* If the request is `succeeded` but outputs are missing, contact support.

***

## Getting help

If you hit an error not listed here, contact [hi@runcomfy.com](mailto:hi@runcomfy.com) with the full error response plus your `deployment_id` and `request_id`.