Fatal error: Uncaught Error: Call to undefined function add_filter() in /home/jubilatek001/public_html/kremufka/wp-content/themes/pierogi/inc/template-functions/layout.php:36 Stack trace: #0 {main} thrown in /home/jubilatek001/public_html/kremufka/wp-content/themes/pierogi/inc/template-functions/layout.php on line 36