davidF-18

Problem:

The client was experiencing a critical PHP Fatal error when trying to access ACF options in the WordPress Admin Area, specifically related to the WPML plugin.

Solution:

1. We recommended ensuring that the Advanced Custom Fields Multilingual plugin is installed and active, as it is essential for the proper translation of ACF fields. For more details, see the documentation: https://wpml.org/documentation/related-projects/translate-sites-built-with-acf/

2. We conducted tests on both our testing servers and the client's staging site. The issue was not reproducible locally but occurred on the staging site only when the Speed Optimizer plugin from SiteGround was active. We advised the client to deactivate the Memcached option in the Siteground Speed Optimizer plugin, which resolved the issue.

If this solution does not resolve your issue or seems outdated, we recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have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.