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This thread is resolved. Here is a description of the problem and solution.

Problem:
The client's site becomes unresponsive immediately after activating WPML, despite multiple attempts and changing hosting providers. The error logs indicated a PHP fatal error due to maximum call stack size being reached, suggesting possible infinite recursion.
Solution:
1. We requested the client to provide current and accurate PHP error logs from their hosting environment after attempting WPML activation.
2. We advised analyzing the site setup for potential plugin conflicts or recursion triggers unrelated to Advanced Custom Fields (ACF).
3. We recommended considering a clean reinstall of WPML and checking for any custom code or hooks tied to localization or user language settings.

If this solution does not resolve your issue, or if it seems outdated or irrelevant to your case, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. If problems persist, please open a new support ticket.

This is the technical support forum for WPML - the multilingual WordPress plugin.

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This topic contains 4 replies, has 1 voice.

Last updated by Carlos Rojas 1 week, 2 days ago.

Assisted by: Carlos Rojas.

Author Posts
April 4, 2026 at 1:11 am #17948733

hectorF

I am so exhausted and depressed. WPML used to be helpful. This is a nightmare.

April 4, 2026 at 1:43 am #17948737

hectorF

My website is ready for translation, but upon activating WPML the site becomes unavailable! Help 🙁 I've used it a lot through the years and the last two implementations have been a nightmare to get working.

April 4, 2026 at 2:27 am #17948739

hectorF

Is this ticket open? I don't think WPML is compatible with WP any more :'( My site is done and just needed translation but WPML makes it crash upon activation. Help!

April 6, 2026 at 7:55 am #17950882

Carlos Rojas
WPML Supporter since 03/2017

Languages: English (English ) Spanish (Español )

Timezone: Europe/Madrid (GMT+02:00)

Hello,
My name is Carlos, and I will continue working on this ticket

Please share the access credentials to the site in your next message, which I have set private. This will allow me to reproduce the issue and check the WPML configuration.

Confirm you have created a full site backup that you can restore if necessary.

Looking forward to your message.
Regards!

April 7, 2026 at 7:34 am #17952830

Carlos Rojas
WPML Supporter since 03/2017

Languages: English (English ) Spanish (Español )

Timezone: Europe/Madrid (GMT+02:00)

Good morning,
Thank you for sharing the credentials requested.

I need you to share the FTP credentials in your next message, so I can debug the issue and confirm you have a full site backup that you can restore if necessary.

I have set your next message private again.

Note: If you'd like, we can continue this ticket in Spanish 🙂