Problem: Some clients are unable to log in to the WordPress admin area, encountering a PHP Fatal error related to the WPML plugin. The temporary fix involves synchronizing posts taxonomies, clearing the WPML cache, removing ghost entries from translation tables, fixing element_type collation, setting language information, synchronizing local job IDs, fixing Terms count, and fixing post assignment for translations. However, this fix has to be reapplied for each new user facing the issue.
Solution: First, confirm if the issue is resolved when WPML is temporarily disabled. If the problem persists, update the WPML plugin to the latest version, currently 4.6.10, along with any add-ons. Updating may not necessarily solve the problem, but it is essential to troubleshoot on the latest version. Before updating, ensure to back up your database. You can find the latest versions in the Downloads section of your account, and update instructions are available at http://wpml.org/faq/install-wpml/. For database backups, you may use plugins like Duplicator.
If the issue continues after updating, it might be due to an outdated solution or a different problem. In such cases, 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 for further assistance.
