502 Bad Gateway on ATE

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

Problem:
If you're experiencing a 502 Bad Gateway error when trying to edit a page after installing WPML plugins and clicking on the translate icon, it might be related to the PHP version used on your server.
Solution:
We recommend that you first ensure you have a full backup of your website. Then, contact your hosting provider and request them to downgrade your PHP to version 8.2. We found that this version resolves the issue, as tested on a copy of a client's site where the Translations Tab and the Complianz plugin were accessible with all WPML plugins activated. Higher versions, such as 8.4, reproduced the same error.

If this solution does not resolve your issue or seems irrelevant due to being outdated or not applicable to your case, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent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. Additionally, you can open a new support ticket for further assistance at WPML support forum.

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

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Tagged: Bug

This topic contains 3 replies, has 0 voices.

Last updated by robertT-35 6 days, 10 hours ago.

Assisted by: Lucas Vidal de Andrade.

Author	Posts
June 26, 2025 at 11:53 am
robertT-35	Background of the issue: I am trying to edit the first page after installing WPML plugins. I am being redirected to a link after clicking on the translate icon. Symptoms: I get a 502 Bad Gateway error on the link: hidden link Questions: How can I resolve the 502 Bad Gateway error when trying to edit a page with WPML?
June 26, 2025 at 12:25 pm
June 26, 2025 at 3:09 pm #17174352
Lucas Vidal de Andrade WPML Supporter since 11/2023 Languages: English (English ) Spanish (Español ) German (Deutsch ) Portuguese (Brazil) (Português ) Timezone: America/Sao_Paulo (GMT-03:00)	Hey there, Upon checking your website again, I noticed that the 502 error might be broader and might not be related to WPML only. By accessing the Complianz tab, the 502 error happens consistently: hidden link This indicates that the issue is being caused by some third party plugin, or by your theme. To confirm if the issue is WPML related, please deactivate WPML and related plugins and check the Complianz tab. Let me know what the results are. Please don't forget to make a full website backup before proceeding. Thank you.
June 27, 2025 at 5:36 am #17175720
robertT-35	Yes, I can see that the Complianz tab also returns a 502 error. I tried deactivating some plugins to troubleshoot the issue, and after deactivating the WPML plugins, Complianz started working fine. Let me know if you need any further details.
June 27, 2025 at 9:20 pm #17178744
Lucas Vidal de Andrade WPML Supporter since 11/2023 Languages: English (English ) Spanish (Español ) German (Deutsch ) Portuguese (Brazil) (Português ) Timezone: America/Sao_Paulo (GMT-03:00)	Hey there, Thank you for sharing the details. I downloaded a copy of your website and noticed that the issue only happens for the PHP version you're currently using. Please make sure to have a full website backup, reach out to your hosting and ask them to downgrade PHP to version 8.2. Let me know if the issue is solved after that. With the copy on version 8.2 I was able to access the Translations Tab and the Complianz plugin with all WPML plugins activated. When using 8.4 or above, I got the same error as you're having.
July 1, 2025 at 9:21 am #17187585
robertT-35	Thank you, that solved the issue. For future the php version will need to updated some time.