# API Error: 1B

The RocketCAD API 1B error will appear when you provide an invalid Steam Hex, or the user associated with the Hex does not have a current community set.

Accompanied by this error will be the provided Steam Hex that was given by your server's game integration script. If you are seeing this error, either the provided Steam Hex doesn't match any current RocketCAD Users - or the users it does match don't have their community set. Please use the following troubleshooting instructions to correct this issue.

{% hint style="info" %}
As a Community Owner, you're ***NOT*** able to correct the issue for the affected user yourself. You must pass these instructions along, or walk them through the steps in order to correct this issue.
{% endhint %}

### How to Resolve Invalid Steam Hex

1. Have the affected user navigate to the [RocketCAD Portal](https://therocketcad.com/portal)
2. Click "Preferences"
3. Modify the Steam Hex, making sure you have **steam:** in front of the hex value. For more help, [visit here](/how-tos/how-to-find-steam-hex.md).

### How to Resolve Current Community

1. Have the affected user navigate to the [RocketCAD Portal](https://therocketcad.com/portal)
2. From the "Home" tab, click "Switch Community"
   1. Alternatively, you may be prompted to join a community if you haven't already - skip to Step 3
3. Click "Join Community" and be sure to join the correct community for the one you're currently playing on


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.therocketcad.com/walkthrough/error-messages/api-error-1b.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.