Fatal error: Uncaught Error: Call to undefined function add_action() in /nfs/aesop1/hw00/d93/covid19prevention/wordpress/wp-content/themes/covid-19-prevention-trial/inc/UWDGH_Template_Video.class.php:13 Stack trace: #0 /nfs/aesop1/hw00/d93/covid19prevention/wordpress/wp-content/themes/covid-19-prevention-trial/inc/UWDGH_Template_Video.class.php(123): UWDGH_Template_Video::init() #1 {main} thrown in /nfs/aesop1/hw00/d93/covid19prevention/wordpress/wp-content/themes/covid-19-prevention-trial/inc/UWDGH_Template_Video.class.php on line 13