Problem: The client is experiencing issues with language switching on their website, resulting in 404 errors when attempting to switch to Lithuanian or access certain sections. Solution: 1. Ensure all pages are fully translated. For guidance, see Getting Started Guide. 2. Check if the REST API is enabled on the site. For more information, visit REST API Dependencies. 3. Update the WPML plugin to the latest version (at least 4.6.11) and all related add-ons. Update instructions can be found at How to Install WPML. 4. Backup the database before updating. A recommended plugin for this is Duplicator. 5. If the issue persists after updating, try deactivating all plugins except WPML to check if the problem is related to a third-party plugin or server issues.
If these steps do not resolve the issue or if the solution seems outdated or irrelevant to your case, we recommend opening a new support ticket. Additionally, check related known issues at Known Issues and ensure you have the latest versions of themes and plugins installed. For further assistance, please visit our support forum at WPML Support Forum.
