Problem: The client encountered a PHP Fatal error indicating a missing class in the WPML plugin while trying to access the WordPress admin area. The error was traced back to issues with file paths being truncated during manual uploads via FTP, influenced by limitations from OneDrive, Windows, and Filezilla. Solution: We recommended checking the WPML support page to ensure all settings are correctly configured. If updating the plugin is necessary, we advised downloading the latest version directly from https://wpml.org/fr/account/downloads/ and installing it manually via WordPress by navigating to Extensions > Add New Plugin > Upload > Install. If problems persist, we suggested testing in a minimal environment by deactivating all plugins except WPML and switching to a default WordPress theme like Twenty Twenty-One to isolate the issue. Additionally, we recommended backing up the database before performing these tests.
If these steps do not resolve the issue, or if the solution seems outdated or irrelevant to your specific case, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the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 further assistance is needed, please open a new support ticket at WPML support forum.
