Fatal error: Uncaught Error: Call to undefined function add_action() in /home/antenaserwis/public_html/satserwis/wp-content/themes/sanse/inc/custom-background.php:24 Stack trace: #0 {main} thrown in /home/antenaserwis/public_html/satserwis/wp-content/themes/sanse/inc/custom-background.php on line 24