Fatal error: Uncaught Error: Call to undefined function add_action() in /home/traildw/www/wp-content/upgrade-temp-backup-old/plugins/jetpack/modules/infinite-scroll.php:54 Stack trace: #0 /home/traildw/www/wp-content/upgrade-temp-backup-old/plugins/jetpack/modules/infinite-scroll.php(42): Jetpack_Infinite_Scroll_Extras->__construct() #1 /home/traildw/www/wp-content/upgrade-temp-backup-old/plugins/jetpack/modules/infinite-scroll.php(234): Jetpack_Infinite_Scroll_Extras::instance() #2 {main} thrown in /home/traildw/www/wp-content/upgrade-temp-backup-old/plugins/jetpack/modules/infinite-scroll.php on line 54