Fatal error: Uncaught Error: Class "WP_Customize_Setting" not found in /home/klient.dhosting.pl/dlugoszartu/testy.admanagement.pl/public_html/skrypty/php-createwp/wordpress 6.7/wp-includes/customize/class-wp-customize-header-image-setting.php:19 Stack trace: #0 {main} thrown in /home/klient.dhosting.pl/dlugoszartu/testy.admanagement.pl/public_html/skrypty/php-createwp/wordpress 6.7/wp-includes/customize/class-wp-customize-header-image-setting.php on line 19