If this solution does not resolve your issue or seems outdated, we recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have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.
Problem: The client reported that activating WPML plugins causes the MySQL binlog file to increase drastically in size, leading to very slow website performance and occasional inability to log into WP admin. Solution: We recommend updating the WPML plugins to the latest versions. Specifically, update WPML to version 4.6.12 and Strings Translation to 3.2.13. These updates address issues that might be causing the large binlog file. After updating, clear the debug.log to ensure that only new errors are logged. If you don't see the new versions available, please visit your WP admin's plugin installation page and click on the Check for updates button. You can find the plugin installation page here: Plugin Installation.
Please note that the preg_match() errors mentioned are not related to the issue of the MySQL binlog file.
If this solution does not resolve your issue or seems outdated, we highly recommend checking related known issues at Known Issues, verifying the version of the permanent fix, and confirming that you have installed the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.
