cakaloz-danismanlik-ic-ve-dis-

Problem:
The client's website crashes and displays a 404 error after switching languages multiple times using the language switcher in the footer.
Solution:
We recommend updating WordPress to the latest version as the client was using an older version (v.6.2.5). It's crucial to ensure that a full backup of the website is made before updating. If the problem persists after updating, it may be due to the flush_rewrite_rules(true) function being called too frequently by third-party plugins, which causes the .htaccess file to be overwritten. For more detailed instructions, please visit https://wpml.org/faq/why-is-htaccess-getting-overwritten-with-the-language-folder-on-my-wpml-website/.

If this solution does not resolve your issue or seems irrelevant due to being outdated or not applicable to your case, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent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