Fatal error: Uncaught Error: Call to undefined function add_action() in /nfs/aesop1/hw00/d52/fnwtbc/wordpress/wp-content/plugins/smart-forms/additional_fields/smart-forms-additional-fields-list.php:2 Stack trace: #0 {main} thrown in /nfs/aesop1/hw00/d52/fnwtbc/wordpress/wp-content/plugins/smart-forms/additional_fields/smart-forms-additional-fields-list.php on line 2