[Resolved] 404

Problem:
The client is experiencing recurring 404 errors on their website at different times on various pages and languages, even after trying various settings and configurations.
Solution:
1. We recommended resaving the permalinks and testing the website in a minimal environment. This involves switching to a default WordPress theme like TwentyTwenty-Four and deactivating all plugins except WPML and its add-ons to check if the issue persists.
2. If the problem continues, the client should deactivate all plugins except WPML, then reactivate them one by one to identify the problematic plugin.
3. We suggested checking with the hosting provider as the issue might be related to server configurations rather than the WPML plugin itself.
4. We also recommended checking the WPML known issues for potential solutions.

If this solution does not resolve your issue or seems outdated, please check the related known issues at https://wpml.org/known-issues/, verify the version of the permanent fix, and confirm that you have installed the latest versions of themes and plugins. If the problem persists, we highly recommend opening a new support ticket at WPML support forum.