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Problem:
You are experiencing an automatic language switch in your admin profile and incorrect amounts on invoices when saving orders due to a language mismatch.
Solution:
First, ensure that you update WooCommerce to the latest version. If the problem persists, disable all non-WPML plugins except for WooCommerce and switch to a default theme. Remember to clear all caches. After these steps, check if the issue still occurs. If it does, we will escalate this to our second-tier support.

Please note that this solution might be outdated or not applicable to your specific case.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 the issue persists, please open a new support ticket at WPML support forum.

Problem:
You are experiencing a critical error when accessing backend pages in French after upgrading to PHP 8.4. The error results in headers appearing but the content remains empty, and a critical error message is displayed.
Solution:
First, we recommend enabling the WordPress debug log to capture more specific error details. You can do this by editing the

wp-config.php

file and inserting the following lines:

define('WP_DEBUG', true);<br />define('WP_DEBUG_LOG', true);<br />define('WP_DEBUG_DISPLAY', false);

After setting these, try to reproduce the issue and check the debug log in

/wp-content/debug.log

for any specific error messages. Share these details via a secure method like pastebin.com for further analysis.

If the issue persists, consider downgrading your PHP version to 8.2 as PHP 8.4 may not be fully compatible with WPML or even WordPress itself. This step should help resolve the compatibility issues you are facing.

Relevant Documentation:
https://codex.wordpress.org/Debugging_in_WordPress

If these steps do not resolve your issue or if the solution becomes irrelevant due to updates or specific circumstances, 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 needed, please open a new support ticket for personalized assistance at WPML support forum.