alexandreB-46

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This solution might be irrelevant if it's outdated or not applicable to your case.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.