Fatal error: Uncaught Error: Call to undefined function wp_unique_id_from_values() in /home/xs636666/ryugakukyokai.or.jp/public_html/wp-includes/block-supports/layout.php:832 Stack trace: #0 /home/xs636666/ryugakukyokai.or.jp/public_html/wp-includes/class-wp-hook.php(326): wp_render_layout_support_flag('\n<ul class="wp-...', Array) #1 /home/xs636666/ryugakukyokai.or.jp/public_html/wp-includes/plugin.php(205): WP_Hook->apply_filters('\n<ul class="wp-...', Array) #2 /home/xs636666/ryugakukyokai.or.jp/public_html/wp-includes/class-wp-block.php(584): apply_filters('render_block', '\n<ul class="wp-...', Array, Object(WP_Block)) #3 /home/xs636666/ryugakukyokai.or.jp/public_html/wp-includes/blocks.php(2191): WP_Block->render() #4 /home/xs636666/ryugakukyokai.or.jp/public_html/wp-includes/blocks.php(2243): render_block(Array) #5 /home/xs636666/ryugakukyokai.or.jp/public_html/wp-includes/class-wp-hook.php(324): do_blocks('<!-- wp:paragra...') #6 /home/xs636666/ryugakukyokai.or.jp/public_html/wp-includes/plugin.php(205): WP_Hook->a in /home/xs636666/ryugakukyokai.or.jp/public_html/wp-includes/block-supports/layout.php on line 832