Mohamed Amine Samet

Problem:
You are experiencing 500 - Internal Server Errors on your website, which may be due to insufficient server resources to handle WPML's operations, especially under high load.
Solution:
We recommend checking if the issue persists after applying the steps outlined in https://wpml.org/faq/why-is-htaccess-getting-overwritten-with-the-language-folder-on-my-wpml-website/#how-can-i-identify-the-plugin-causing-this-and-fix-the-issue.

If this solution does not resolve the issue or seems irrelevant due to being outdated or not applicable to your case, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent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