Fatal error: Uncaught Error: Call to undefined function add_action() in /home/clmepl5/public_html/web/app/plugins/gravityview/includes/class-gravityview-migrate.php:18 Stack trace: #0 /home/clmepl5/public_html/web/app/plugins/gravityview/includes/class-gravityview-migrate.php(316): GravityView_Migrate->__construct() #1 {main} thrown in /home/clmepl5/public_html/web/app/plugins/gravityview/includes/class-gravityview-migrate.php on line 18