# "Your site may not work because" Horizon

**URL:** https://meta.discourse.org/t/your-site-may-not-work-because-horizon/411894
**Category:** Bug
**Tags:** horizon-theme
**Created:** [September 8, 2026, 1:42pm UTC](https://meta.discourse.org/t/your-site-may-not-work-because-horizon/411894 "2026-09-08T13:42:09Z")
**Posts on this page:** 1
**Showing post:** 1

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### Author: ![donaldsoncd](https://avatars.discourse-cdn.com/v4/letter/d/90ced4/32.png) [@donaldsoncd](https://meta.discourse.org/u/donaldsoncd)
#### Post date: [September 8, 2026, 1:42pm UTC](https://meta.discourse.org/t/your-site-may-not-work-because-horizon/411894/1 "2026-09-08T13:42:09Z")

</div>

Hi! I suddenly got a warning message for my hosted Discourse forum:

> Your site may not work because a theme / component has errors.  
> Caused by “Horizon”

I checked the browser console as suggested (though I’m not a developer and don’t really understand what is going on), and it seems to be coming from Horizon.

 ![image](https://global.discourse-cdn.com/meta/original/4X/3/1/3/3130d0e56424fe9a410cdbf2da94954aa0ef8b57.png)

As far as I know, I haven’t made any recent changes to Horizon that would explain this. The forum itself still seems to load, but the administrator warning appears at the top.

Is this a known issue with Horizon and the current Discourse version, or is there something I should update/change on my end?

Thank you!

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_[View the full topic](https://meta.discourse.org/t/your-site-may-not-work-because-horizon/411894)._