Fatal error: Uncaught Error: Call to undefined function add_filter() in /home/MaksiuZi/public_html/bartektest/wp-content/themes/pencil/inc/extras.php:24 Stack trace: #0 {main} thrown in /home/MaksiuZi/public_html/bartektest/wp-content/themes/pencil/inc/extras.php on line 24