Fatal error: Uncaught Error: Call to undefined function add_action() in C:\xampp\htdocs\WAIT FOR DELETE\wp-content\plugins\jetpack\modules\simple-payments\simple-payments.php:123 Stack trace: #0 C:\xampp\htdocs\WAIT FOR DELETE\wp-content\plugins\jetpack\modules\simple-payments\simple-payments.php(81): Jetpack_Simple_Payments->register_init_hooks() #1 C:\xampp\htdocs\WAIT FOR DELETE\wp-content\plugins\jetpack\modules\simple-payments\simple-payments.php(802): Jetpack_Simple_Payments::get_instance() #2 {main} thrown in C:\xampp\htdocs\WAIT FOR DELETE\wp-content\plugins\jetpack\modules\simple-payments\simple-payments.php on line 123