Fatal error: Uncaught Error: Call to undefined function add_action() in /homepages/19/d621719403/htdocs/blog/wp-content/plugins/jetpack/modules/protect/transient-cleanup.php:54 Stack trace: #0 {main} thrown in /homepages/19/d621719403/htdocs/blog/wp-content/plugins/jetpack/modules/protect/transient-cleanup.php on line 54