Fatal error: Uncaught Error: Call to undefined function add_action() in /home/wiktorek1221/public_html/klasaivwb/wp-content/themes/sydney/inc/customizer/controls/display-conditions/display-conditions-script-template.php:372 Stack trace: #0 {main} thrown in /home/wiktorek1221/public_html/klasaivwb/wp-content/themes/sydney/inc/customizer/controls/display-conditions/display-conditions-script-template.php on line 372