Description:

Visualizer 3.9.0 added WPML support in ad22ce3, which breaks the plugin with Polylang, since Polylang registers icl_get_languages function for WPML compatibility.

Maybe some additional checks for $sitepress global that it's actually instanceof SitePress?

How to reproduce:

Install Visualizer 3.9.0. Install Polylang.

Expected behaviour:

Site loads with graphs.

Current behaviour:

Site doesn't load with graphs.

Call to a member function get_element_trid() on null
errfile:wp-content/plugins/visualizer/classes/Visualizer/Module/Frontend.php
errline:312

Technical info

• WordPress version: 6.0.3
• Plugin version: 3.9.0