Fatal error: Uncaught Error: Class "WP_Ajax_Upgrader_Skin" not found in /home/oxygenco/prod/wordpress/wp-content/plugins/wpforms-lite/src/Lite/Admin/ConnectSkin.php:18 Stack trace: #0 {main} thrown in /home/oxygenco/prod/wordpress/wp-content/plugins/wpforms-lite/src/Lite/Admin/ConnectSkin.php on line 18