Fatal error: Uncaught Error: Call to undefined function add_action() in /home/artemi19/public_html/test/wp-content/plugins/jetpack/modules/carousel/jetpack-carousel.php:28 Stack trace: #0 /home/artemi19/public_html/test/wp-content/plugins/jetpack/modules/carousel/jetpack-carousel.php(546): Jetpack_Carousel->__construct() #1 /home/artemi19/public_html/test/wp-content/plugins/jetpack/modules/carousel.php(16): include('/home/artemi19/...') #2 {main} thrown in /home/artemi19/public_html/test/wp-content/plugins/jetpack/modules/carousel/jetpack-carousel.php on line 28