SublimeText3のemmetで閉じタグの後ろにコメントアウトを入れたい


Fatal error: Uncaught Error: Call to undefined function MarkupMarkdown\Core\wp_is_rest_endpoint() in /home/web13c/bistro.site/public_html/wp-content/plugins/markup-markdown/MarkupMarkdown/Core/Support.php:303 Stack trace: #0 /home/web13c/bistro.site/public_html/wp-content/plugins/markup-markdown/MarkupMarkdown/Core/Support.php(326): MarkupMarkdown\Core\Support->content_data('Sublime Text \xE3\x81...', 1) #1 /home/web13c/bistro.site/public_html/wp-includes/class-wp-hook.php(324): MarkupMarkdown\Core\Support->post_content_mmd2html('Sublime Text \xE3\x81...') #2 /home/web13c/bistro.site/public_html/wp-includes/plugin.php(205): WP_Hook->apply_filters('Sublime Text \xE3\x81...', Array) #3 /home/web13c/bistro.site/public_html/wp-content/themes/luxeritas/inc/filters.php(292): apply_filters('the_content', 'Sublime Text \xE3\x81...') #4 /home/web13c/bistro.site/public_html/wp-includes/class-wp-hook.php(324): {closure}('Sublime Text \xE3\x81...') #5 /home/web13c/bistro.site/public_html/wp-includes/plugin.php(205): WP_Hook->apply_fi in /home/web13c/bistro.site/public_html/wp-content/plugins/markup-markdown/MarkupMarkdown/Core/Support.php on line 303