Fatal error: Uncaught Error: Call to undefined function add_action() in /nfs/bronfs/uwfs/hw00/d73/eph/wordpress/wp-content/plugins/jetpack/modules/theme-tools/responsive-videos.php:43 Stack trace: #0 {main} thrown in /nfs/bronfs/uwfs/hw00/d73/eph/wordpress/wp-content/plugins/jetpack/modules/theme-tools/responsive-videos.php on line 43