Fatal error: Uncaught Error: Call to undefined function list_category() in /usr/home/ae152cbr2y/html/wp/wp-content/themes/yaheikohan/template-parts/content-single.php:31 Stack trace: #0 /usr/home/ae152cbr2y/html/wp/wp-includes/template.php(732): require() #1 /usr/home/ae152cbr2y/html/wp/wp-includes/template.php(676): load_template('/usr/home/ae152...', false, Array) #2 /usr/home/ae152cbr2y/html/wp/wp-includes/general-template.php(204): locate_template(Array, true, false, Array) #3 /usr/home/ae152cbr2y/html/wp/wp-content/themes/yaheikohan/single.php(10): get_template_part('template-parts/...') #4 /usr/home/ae152cbr2y/html/wp/wp-includes/template-loader.php(106): include('/usr/home/ae152...') #5 /usr/home/ae152cbr2y/html/wp/wp-blog-header.php(19): require_once('/usr/home/ae152...') #6 /usr/home/ae152cbr2y/html/wp/index.php(17): require('/usr/home/ae152...') #7 {main} thrown in /usr/home/ae152cbr2y/html/wp/wp-content/themes/yaheikohan/template-parts/content-single.php on line 31