Fatal error: Uncaught Error: Call to undefined function add_action() in C:\xampp\htdocs\krustpilsbaznica.lv\public_html\wp-content\plugins\jetpack\modules\shortcodes\presentations.php:91 Stack trace: #0 C:\xampp\htdocs\krustpilsbaznica.lv\public_html\wp-content\plugins\jetpack\modules\shortcodes\presentations.php(487): Presentations->__construct() #1 {main} thrown in C:\xampp\htdocs\krustpilsbaznica.lv\public_html\wp-content\plugins\jetpack\modules\shortcodes\presentations.php on line 91