> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help-legacy.galaxycloud.app/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# 502 errors

You may see a 502 error with the message `Registered endpoints failed to handle the request` when you try to visit your URL. This means that the request failed, despite the fact that our system thought there was a healthy container at the beginning of the request.

This often happens because your back-end wasn’t able to respond when communicating with our proxy servers. You may need to profile your app to determine the cause of this error. Check the Logs tab to potentially find out more information about the issue.