Jacky

Problem:
The client is experiencing site crashes when attempting to complete translations. This issue has occurred previously and is suspected to be related to a plugin conflict, potentially with WordFence, as indicated by the error message from the file

/wp-content/plugins/sitepress-multilingual-cms/inc/functions-load-tm.php

.
Solution:
1. Temporarily disable the WPEngine cache to check if it resolves the issue.
2. Put the website in maintenance mode and deactivate as many plugins as possible to identify if a specific plugin is causing the translation issue. Reactivate them one by one to pinpoint the problematic plugin.
3. Verify that WordFence is configured correctly as it is compatible with WPML. Consider trying another security plugin recommended by WPML if the issue persists. You can find a list of recommended security plugins here: https://wpml.org/plugin-functionality/security/.

If these steps do not resolve your issue, or if the solution seems outdated or irrelevant to your case, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix,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.