Problem: The client is experiencing an Error 500 on the German language page of their WooCommerce site when WPML String is activated. Deactivating WPML String resolves the checkout issue but not the Error 500.
Solution: 1. Enable WordPress debug mode by following the guide at Debugging in WordPress. 2. Reproduce the error by visiting the problematic page. 3. Check the debug.log for errors. The logs indicated a fatal error caused by the WooCommerce plugin, specifically a missing format specifier in 'class-wc-post-types.php' on line 237. 4. Temporarily deactivate WooCommerce to confirm if the site loads without errors.
If these steps do not resolve the issue or if the solution seems outdated or irrelevant to your case, please check for related known issues at WPML Known Issues and ensure all themes and plugins are up to date. If problems persist, we recommend opening a new support ticket for further assistance.
