Problem: The client encountered a bug with WPML where the automatic redirection to the correct language page for custom post type terms was not functioning. The error 'Call to a member function wp_safe_redirect() on null' was identified in 'sitepress-multilingual-cms/classes/query-filtering/class-wpml-query-parser.php' on line 340.
Solution: We recommend the following troubleshooting steps: 1. Ensure you have a full backup of your website and database. 2. Update WordPress to the latest version. 3. Increase the 'WP Memory Limit' to at least 128MB, preferably 256MB. You can do this by adding the following code to your wp-config.php file:
Make sure to add these lines before the 'Happy publishing' comment. 4. Switch to a standard WordPress theme like 2021 or 2023 to ensure the issue is not theme-related. 5. Deactivate all plugins except WPML and its addons to check if the issue persists. 6. Reactivate each plugin one by one, checking for the issue after each activation to identify any conflicts.
