Fatal error: Uncaught Error: Call to undefined function add_shortcode() in /home/oro/public_html/lekcjatestmp/IVIPzadanie/wp-includes/media.php:2167 Stack trace: #0 {main} thrown in /home/oro/public_html/lekcjatestmp/IVIPzadanie/wp-includes/media.php on line 2167