Fatal error: Uncaught Error: Call to undefined function add_action() in /var/www/html/skarbysmaku/wp-content/plugins/jetpack/modules/theme-tools/content-options.php:78 Stack trace: #0 {main} thrown in /var/www/html/skarbysmaku/wp-content/plugins/jetpack/modules/theme-tools/content-options.php on line 78