Fatal error: Uncaught Error: Call to undefined function add_action() in /home/users2/a/aeris/www/miyablog/wp-content/plugins/jetpack/modules/custom-content-types.php:22 Stack trace: #0 {main} thrown in /home/users2/a/aeris/www/miyablog/wp-content/plugins/jetpack/modules/custom-content-types.php on line 22