Conflict with Divi Theme

I’m using this plugin with Divi Themes (from Elegant Themes)

When clicking on Directory Columns icon in form editor, the popup displays error;

Fatal error: Class ‘ET_Builder_Element’ not found in /wp-content/themes/Divi/includes/builder/functions.php on line 1192

Is this s known issue?

https://wordpress.org/plugins/gravity-forms-addons/