Fatal error: Uncaught Error: Call to undefined function add_action() in /home/mintcode/public_html/babski-swiat/wp-content/plugins/shortcodes-ultimate/inc/core/assets.php:20 Stack trace: #0 /home/mintcode/public_html/babski-swiat/wp-content/plugins/shortcodes-ultimate/inc/core/assets.php(265): Su_Assets->__construct() #1 /home/mintcode/public_html/babski-swiat/wp-content/plugins/shortcodes-ultimate/shortcodes-ultimate.php(25): require_once('/home/mintcode/...') #2 {main} thrown in /home/mintcode/public_html/babski-swiat/wp-content/plugins/shortcodes-ultimate/inc/core/assets.php on line 20