Fatal error: Uncaught Error: Class "WP_Block_Supports" not found in /home/klient.dhosting.pl/dlugoszartu/testy.admanagement.pl/public_html/skrypty/php-createwp/wordpress 6.7/wp-includes/block-supports/custom-classname.php:59 Stack trace: #0 {main} thrown in /home/klient.dhosting.pl/dlugoszartu/testy.admanagement.pl/public_html/skrypty/php-createwp/wordpress 6.7/wp-includes/block-supports/custom-classname.php on line 59