Fatal error: Uncaught Error: Call to undefined function add_action() in /home/caryol/public_html/wp-content/plugins/jetpack/jetpack_vendor/automattic/jetpack-newsletter/build/modules.php:63 Stack trace: #0 /home/caryol/public_html/wp-content/plugins/jetpack/jetpack_vendor/automattic/jetpack-newsletter/build/build.php(12): require_once() #1 {main} thrown in /home/caryol/public_html/wp-content/plugins/jetpack/jetpack_vendor/automattic/jetpack-newsletter/build/modules.php on line 63