Fatal error: Uncaught Error: Call to undefined function add_action() in C:\xampp\htdocs\wordpress\wp-content\pluginsBK\wp-calendar-clock\wp-flashclock.php:148 Stack trace: #0 {main} thrown in C:\xampp\htdocs\wordpress\wp-content\pluginsBK\wp-calendar-clock\wp-flashclock.php on line 148