Problem: The client is unable to update WPML to version 4.7.1 even though it is registered, and this issue is causing a fatal error on the cart page after updating other plugins. Solution: If you're experiencing this issue, we recommend you follow these steps: 1. Take a complete backup of your site. 2. Deactivate all WPML plugins, including the WooCommerce Multilingual plugin. 3. Download the latest copies of WPML and WooCommerce Multilingual from https://wpml.org/account/downloads/. 4. Delete the WPML plugins (your settings and translations are saved in the database and will not be deleted.) 5. Upload the freshly downloaded WPML plugins by going to Plugins -> Add New -> Upload Plugin. 6. Activate the plugins.
This solution might be irrelevant if it's outdated or not applicable to your case.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. If the problem persists, please open a new support ticket at WPML support forum.
