Dynamic pages randomly returning 500 error after every publish

I’m having trouble with
Dynamic pages randomly returning 500 errors after every publish. Re-publishing fixes some pages but breaks others, it’s an endless loop and I can never get all pages working at the same time.

Working in
Wix Editor, CMS

Site link
https://musei.geniusloci-mic.it/campania/016-pignatelli/pianoprimo/002-pannello-plexi02/pannello (one of the affected pages, this one fails on desktop but works on mobile)

What I’m trying to do
Have all dynamic pages accessible on the live site without 500 errors

What I’ve tried so far
Re-publishing the site multiple times

Testing on different devices and networks, the problem is not device-specific

The same pages work fine in Preview, only break on the live site

Extra context
Site has 15 collections and 45+ dynamic pages. Both pages with and without Velo code are affected. The error message shown is: “This page isn’t available right now. But we’re working on a fix, ASAP. Try again soon.” Some pages return 500 on mobile but work on desktop, while other pages return 500 on desktop but work on mobile

We can add some more info: we see a random 414 HTTP error, “URI too long”. Please check the screenshot.

A 414 error means the browser is sending a request with a URL that’s too long for the server to handle. That usually happens when a dynamic page URL is being overloaded with query parameters or there’s a redirect loop building longer and longer URLs after publish… Also, possible that some script is adding large encoded data to the URL.

Temporarily disable all Velo code on one broken dynamic page and republish. If it works, the issue is coming from URL manipulation.

Check whether any filters, redirects, or wixLocation logic are adding long query strings. Repeated redirects can silently grow URLs until they break.

If the issue persists even with Velo disabled, it’s likely a backend routing/cache issue on Wix’s side, and you’ll need Wix Support to investigate the live environment.

I am experiencing the exact same issue on my site. All of my dynamic pages (under the /specialists route) are stuck on the 500 “Time Out” screen with the crying face.

Just like you, I checked the F12 developer console and I am also seeing the 414 HTTP error, "URI too long". The only difference in my case is that it’s not random or device-specific—my dynamic pages are completely broken across ALL devices (both desktop and mobile) and republishing doesn’t help at all.

I have already contacted Wix Support and they escalated this to their Advanced Team. Since multiple users are seeing this exact 414 URI error resulting in a 500 timeout, it’s definitely a critical platform-wide bug with how Wix is routing dynamic pages right now. Let’s hope they deploy a fix ASAP!

1 Like

Yes, the 414 meaning is clear, as it is our screenshot capturing the resolved URI which is indeed very very very very long. This is happening also on pages more than one year old, which did work until some days ago and without any embedded code. You can see an example just in the first post above, https://musei.geniusloci-mic.it/campania/016-pignatelli/pianoprimo/002-pannello-plexi02/pannello without any query parameter or whatsoever. Can you confirm you have the same issue? Those are very simple dynamic pages…

Sorry to hear that. I also contacted Wix Support and already have an escalated ticket, but so far I still haven’t received any real update on their side.

Have they given you any update yet?

Hey! I think this is the same conversation as we were having in Discord, right?

I’ve reached out to the team regarding this and will loop around once I have more info. In the meantime for anyone else passing through this thread, please make sure you open a ticket for this :slight_smile:

Yes, it is. Thank you!

Just to close this out - this should be resolved now :slight_smile:

If you still see it temporarily, you may need to clear cache on your end - but should be good going forward