Fatal error: Uncaught Error: Class "WP_Block_Metadata_Registry" not found in /home/klient.dhosting.pl/biuro367/martalewicz.pl/public_html/wp-includes/blocks.php:391 Stack trace: #0 /home/klient.dhosting.pl/biuro367/martalewicz.pl/public_html/wp-includes/blocks/index.php(172): wp_register_block_metadata_collection('/home/klient.dh...', '/home/klient.dh...') #1 /home/klient.dhosting.pl/biuro367/martalewicz.pl/public_html/wp-includes/class-wp-hook.php(324): wp_register_core_block_metadata_collection('') #2 /home/klient.dhosting.pl/biuro367/martalewicz.pl/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) #3 /home/klient.dhosting.pl/biuro367/martalewicz.pl/public_html/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #4 /home/klient.dhosting.pl/biuro367/martalewicz.pl/public_html/wp-settings.php(700): do_action('init') #5 /home/klient.dhosting.pl/biuro367/martalewicz.pl/public_html/wp-config.php(96): require_once('/home/klient.dh...') #6 /home/klient.dhosting.pl/biuro367/martalewicz.pl/public_html/wp-load.php(50): require_once('/home/klient.dh...') #7 /home/klient.dhosting.pl/biuro367/martalewicz.pl/public_html/wp-blog-header.php(13): require_once('/home/klient.dh...') #8 /home/klient.dhosting.pl/biuro367/martalewicz.pl/public_html/index.php(17): require('/home/klient.dh...') #9 {main} thrown in /home/klient.dhosting.pl/biuro367/martalewicz.pl/public_html/wp-includes/blocks.php on line 391