[image] Randomly my forum wen’t down and then when I brought it back up (rebuilt it) this is what is occuring.

A couple options to figure out which one is causing the problem: Visit the theme settings via safe mode and try previewing each theme/component until you find one that causes the problem Disable theme components one at a time and check to see if that fixes your site

First step to debugging would be checking the browser console for errors… it appears to possibly be an issue with the who’s online plugin… is it up-to-date? maybe try disabling it and see if the issue resolves [image] You can circumvent this issue temporarily and access your site by using safe mo…

Safe mode seems to only work when [image] is enabled. I disabled the whos online plugin and same issue.

@Headless I see you marked this as solved, which is great! Were you able to identify the problematic theme component? If it’s a public one, please can you let us know which it was, so we can make sure this doesn’t cause issues for other people?

It seemed to have been the following components for the theme: Topic List Previews and Custom Header Links - Theme component - Discourse Meta

Ok great, thanks! We’re debugging a potential issue over in this topic . If you have the time to try running those commands, then it might solve the problem and allow you to reenable those theme components.

I wen’t ahead and did the steps in this post: Rendering 'TypeError' with theme components after update - #10 by david I can confirm this fixed the issue, turned the components back on and no issues.

Perfect, thanks for your help identifying the problem @Headless !

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Soporte del producto

Headless (Headless) 2 Septiembre, 2025 19:25 10

¡Gracias por el rápido apoyo!

Tema		Respuestas	Vistas
While loading a new component on the site, the site is down Self-hosting	17	1487	30 Octubre 2022
Error - one thread can't be replied to Bug	5	179	26 Julio 2025
Blank website after update Product Support	14	1870	26 Agosto 2020
Site broken after update Self-hosting	3	1130	12 Abril 2021
One admin restarted the forum while another was updating. How to fix Product Support	2	581	19 Octubre 2022

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