Fatal error: Uncaught Error: Call to undefined function add_action() in /home/kacperg/public_html/kacpergr/wp-content/themes/shapely/inc/customizer.php:71 Stack trace: #0 {main} thrown in /home/kacperg/public_html/kacpergr/wp-content/themes/shapely/inc/customizer.php on line 71