Fatal error: Uncaught Error: Call to undefined function add_action() in C:\xampp\htdocs\WAIT FOR DELETE\wp-content\plugins\jetpack\modules\shortcodes\upcoming-events.php:51 Stack trace: #0 {main} thrown in C:\xampp\htdocs\WAIT FOR DELETE\wp-content\plugins\jetpack\modules\shortcodes\upcoming-events.php on line 51