Fatal error: Uncaught Error: Class 'WP_Block_Styles_Registry' not found in /export/sd208/www/jp/r/e/gmoserver/1/1/sd0853111/byu.jp/wp-includes/script-loader.php:2526 Stack trace: #0 /export/sd208/www/jp/r/e/gmoserver/1/1/sd0853111/byu.jp/wp-includes/class-wp-hook.php(287): enqueue_block_styles_assets('') #1 /export/sd208/www/jp/r/e/gmoserver/1/1/sd0853111/byu.jp/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters(NULL, Array) #2 /export/sd208/www/jp/r/e/gmoserver/1/1/sd0853111/byu.jp/wp-includes/plugin.php(478): WP_Hook->do_action(Array) #3 /export/sd208/www/jp/r/e/gmoserver/1/1/sd0853111/byu.jp/wp-includes/script-loader.php(2480): do_action('enqueue_block_a...') #4 /export/sd208/www/jp/r/e/gmoserver/1/1/sd0853111/byu.jp/wp-includes/class-wp-hook.php(287): wp_common_block_scripts_and_styles('') #5 /export/sd208/www/jp/r/e/gmoserver/1/1/sd0853111/byu.jp/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters('', Array) #6 /export/sd208/www/jp/r/e/gmoserver/1/1/sd0853111/byu.jp/wp-includes/plugin.php(478): WP_Hook in /export/sd208/www/jp/r/e/gmoserver/1/1/sd0853111/byu.jp/wp-includes/script-loader.php on line 2526