Fatal error: Uncaught Error: Call to undefined function add_action() in /home/savsol/public_html/wp-content/plugins/jetpack/jetpack_vendor/automattic/jetpack-classic-theme-helper/src/compat/twentytwentyone.php:34 Stack trace: #0 {main} thrown in /home/savsol/public_html/wp-content/plugins/jetpack/jetpack_vendor/automattic/jetpack-classic-theme-helper/src/compat/twentytwentyone.php on line 34