Problem: The client is experiencing an error with the WPML String Translation plugin during the WooCommerce checkout process. The error persists even when the WPML Multilingual plugin is activated. Solution: We recommend ensuring that WooCommerce Multilingual is activated, as it is necessary for WooCommerce to function correctly with WPML. For guidance on activating and configuring this, please refer to our documentation: WooCommerce Multilingual setup guide. If the problem continues, it might be due to a missing file or incorrect setup. Checking the server for missing files or configuration issues that might be causing the error can resolve the issue. If these steps do not resolve the problem, or if the information provided here is outdated or does not directly address your specific situation, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the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 further assistance is needed, please open a new support ticket at WPML support forum.
