Fatal error: Uncaught Error: Call to undefined function add_action() in /home/workings/public_html/hidden/wp-content/plugins/jetpack/modules/wordads/php/cron.php:16 Stack trace: #0 /home/workings/public_html/hidden/wp-content/plugins/jetpack/modules/wordads/php/cron.php(48): WordAds_Cron->__construct() #1 {main} thrown in /home/workings/public_html/hidden/wp-content/plugins/jetpack/modules/wordads/php/cron.php on line 16