I got an email notification the other day that my self-hosted Discourse site (Ubuntu 18.04.6 on Contabo) was due an update, so to the Admin page I went to update. As usual, I first needed to update docker-manager, and then run the rest of the update for the site. That update seemed to freeze in place–it reached a certain point, and then didn’t move at all. After about an hour of that, I figured CLI intervention was called for, so I ssh’d into the server and did cd /var/discourse; git pull; ./launcher rebuild app. That completed without apparent error, but I’m left with a site that looks like this: [image] (the dots are animated in real life). Thinking that the software might just be taking some time to start up, I waited–over a day, in fact–with no change. Rebooting the server had no effect, nor did rebuilding again. Interestingly, my users are still able to post by email, and the site sends those out as expected. I’d appreciate some pointers here–what can I do to get the site back up?

If it works in safe mode then it could be a plugin, theme or theme component that’s causing some kind of conflict. You can use the options on the safe mode screen to help narrow it down. Disabling just ‘unofficial plugins’ seems to work: [image] And I can see this error in the browser console when trying to load your site not in safe mode: Uncaught (in promise) Error: Could not find module `admin/models/admin-user` imported from `discourse/plugins/discourse-merge-users/discourse/components/merge-users-form` c loader.js:247 c loader.js:258 findDeps loader.js:168 c loader.js:262 requireModule loader.js:24 Ember 3 resolveOther resolver.js:241 Ember 5 initialize colocated-template-overrides.js:31 eachThemePluginTemplate colocated-template-overrides.js:41 initialize colocated-template-overrides.js:22 initialize app.js:41 runInstanceInitializers Ember each dag-map.js:192 walk dag-map.js:121 each dag-map.js:66 topsort dag-map.js:72 Ember 4 invoke queue.ts:201 flush queue.ts:98 flush deferred-action-queues.ts:75 _end index.ts:616 _boundAutorunEnd index.ts:257 promise callback*n/ start-app.js:4 discourse-boot.js:18 discourse-boot.js:19 loader.js:247 Which is pointing to an issue with discourse-merge-users. You could try rebuilding without that plugin to see if that’s the problem. :+1: Checking the plugin topic, it looks like it’s been deprecated and this is a known issue: [image]Merge Users Plugin Update Dec 2022: I think a recent software update has meant that the plugin causes an error when someone is not an admin: Unhandled Promise Rejection: Error: Could not find module admin/models/admin-user imported from discourse/plugins/discourse-merge-users/discourse/components/merge-users-form So if anyone else still has this plugin installed, now is the time to uninstall it.

Hi Dan :slight_smile: Does it work in safe mode? And it would be useful if you could share a link so we can check it out, if possible.

I didn’t know to try safe mode, but yes, it does seem to come up that way. The site is at: [image] SpareOom SpareOom is a forum for discussion about, or inspired by, the life and works of C.S. Lewis

[image] JammyDodger: You could try rebuilding without that plugin to see if that’s the problem. That does indeed seem to have been the problem; rebuilding without it does resolve it–though it’s interesting that the topic you shared indicates that the problem appears when someone is not an admin, and I am. But with it disabled, the site now seems to work fine again. Thanks for the quick and on-point help.

No worries. Glad I could help. :slight_smile:

After update, site won't come up

Product Support Self-hosting

danb35 (Dan) January 14, 2023, 12:24pm 3

I didn’t know to try safe mode, but yes, it does seem to come up that way. The site is at:

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After update, site won't come up

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