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

# Troubleshooting

[![https://img.shields.io/badge/issue\_tracking-github-blue?logo=github](https://img.shields.io/badge/issue_tracking-github-blue?logo=github)](https://github.com/qBraid/community/issues)

Check the [qBraid Status Page](https://status.qbraid.com/) to see if there are any ongoing incidents or maintenance windows affecting services.

If you encounter an error that isn't included on this page or if the solution provided doesn't work, please [submit a support request](https://account.qbraid.com/support), [email us](mailto:contact@qbraid.com), or [open a bug report](https://github.com/qBraid/community/issues/new?assignees=\&labels=bug).

Also see our [FAQs](/v2/home/faq).

## Lab server errors

If you get one of the following errors from inside Lab,

* `Service unavailable or unreachable`
* `File Save Error`

For these types of errors, refreshing the page won't work and you will need to restart your qBraid Lab server.

You can stop your running server from your [account dashboard](https://account.qbraid.com/), and then launch a new instance.

## ModuleNotFoundError

While running a notebook, if you get a `ModuleNotFoundError` after an import statement:

1. Check to make sure you are using the correct notebook kernel for your environment, see [Switch notebook kernel](/v2/lab/user-guide/notebooks/#switch-notebook-kernel).
2. If you are using the correct kernel, the package you are trying to import may not be installed in that environment. See [Install new package](/v2/lab/user-guide/environments#install-new-package).