Fatal error: Uncaught Error: Call to undefined function register_block_type_from_metadata() in /www/htdocs/w007ffcb/wpmultisite/wp-content/plugins/gutenberg/lib/blocks.php:129 Stack trace: #0 /www/htdocs/w007ffcb/wpmultisite/wp-includes/class-wp-hook.php(287): gutenberg_reregister_core_block_types('') #1 /www/htdocs/w007ffcb/wpmultisite/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters(NULL, Array) #2 /www/htdocs/w007ffcb/wpmultisite/wp-includes/plugin.php(478): WP_Hook->do_action(Array) #3 /www/htdocs/w007ffcb/wpmultisite/wp-settings.php(540): do_action('init') #4 /www/htdocs/w007ffcb/wpmultisite/wp-config.php(98): require_once('/www/htdocs/w00...') #5 /www/htdocs/w007ffcb/wpmultisite/wp-load.php(37): require_once('/www/htdocs/w00...') #6 /www/htdocs/w007ffcb/wpmultisite/wp-blog-header.php(13): require_once('/www/htdocs/w00...') #7 /www/htdocs/w007ffcb/wpmultisite/index.php(17): require('/www/htdocs/w00...') #8 {main} thrown in /www/htdocs/w007ffcb/wpmultisite/wp-content/plugins/gutenberg/lib/blocks.php on line 129