# Fout bij het verzenden van een bericht in chat \[gedowngraded naar Stable vanaf 3.1.0beta4\]

**URL:** https://meta.discourse.org/t/error-when-i-send-a-message-in-chat-downgraded-to-stable-from-3-1-0beta4/267780
**Category:** Self-hosting
**Tags:** unsupported-install
**Created:** [9 juni 2023 om 10:53 UTC](https://meta.discourse.org/t/error-when-i-send-a-message-in-chat-downgraded-to-stable-from-3-1-0beta4/267780 "2023-06-09T10:53:28Z")
**Posts on this page:** 1
**Showing post:** 14

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### Author: ![Stephen](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/stephen/32/95011_2.png) [@Stephen](https://meta.discourse.org/u/Stephen)
#### Post date: [9 juni 2023 om 18:02 UTC](https://meta.discourse.org/t/error-when-i-send-a-message-in-chat-downgraded-to-stable-from-3-1-0beta4/267780/14 "2023-06-09T18:02:12Z")

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There are no guarantees of compatibility with _anything_ when using subfolder. It’s an advanced installation and very little is tested against it.

You could use a different subdomain for your discourse installation. SSO will work between subdomains.

The top of the subfolder guide contains this text:

> [@Serve Discourse from a subfolder (path prefix) instead of a subdomain](https://meta.discourse.org/t/serve-discourse-from-a-subfolder-path-prefix-instead-of-a-subdomain/30507/1):
>
> ### ⚠ Discourse Official Statement about Subfolder setup
> 
> We support subfolder setups for our hosted customers at the enterprise level and up. Due to heavy technical setup complexity we strongly recommend you do not use this setup unless you are very experienced in custom subfolder setups.
> 
> It is critical you have a deep understanding of
> 
> - NGINX setup in the Discourse Docker container
> - Secure original IP forwarding using custom headers in the proxy chain
> - Rate limiting in front proxy server
> 
> If this all sounds odd and strange to you **we strongly recommend** you avoid this setup.

You need to move back to tests-passed to be in a remotely supportable state, assuming your database isn’t just broken now. Rolling back a version is wholly unsupported.

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_[View the full topic](https://meta.discourse.org/t/error-when-i-send-a-message-in-chat-downgraded-to-stable-from-3-1-0beta4/267780)._