tinaL-5

Problem:
When navigating through the main menu on a multisite setup using WPML with subdomains, the AJAX request URL incorrectly switches to an English URL (https://en.fme.de/wp-admin/admin-ajax.php), causing the site to fetch English content instead of the intended language. This issue persists despite disabling related plugins and occurs specifically when using the Divi FilterGrid.
Solution:
1. Ensure that your WPML plugin and all related add-ons are updated to the latest version. You can check and update from WPML Installation Guide.
2. Verify that the issue isn't due to a compatibility problem between WPML and the Divi FilterGrid. If you're using posts or pages within the grid, change their settings in WPML > Settings > Post type translation to 'Translatable'.
3. Check if the issue also occurs with a regular Divi grid widget or only with the FilterGrid addon.
4. If the problem is due to the plugin not being officially compatible with WPML, consider contacting the plugin author to discuss making the plugin compatible through WPML's GO Global program. More details can be found here: GO Global Program.
5. For AJAX calls, ensure proper language handling by following the guidelines provided here: Handling AJAX with WPML.

If these steps do not resolve your issue or if the solution seems outdated or irrelevant to your specific case, we highly recommend checking related known issues at WPML Known Issues, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. If the problem persists, please open a new support ticket at WPML Support Forum.