Fatal error: Uncaught Error: Call to undefined function cat_name() in /home/atatsuku/www/seminar.atatsuku.com/wp-content/themes/seminar/single.php:19
Stack trace:
#0 /home/atatsuku/www/seminar.atatsuku.com/wp-includes/template-loader.php(106): include()
#1 /home/atatsuku/www/seminar.atatsuku.com/wp-blog-header.php(19): require_once('/home/atatsuku/...')
#2 /home/atatsuku/www/seminar.atatsuku.com/index.php(17): require('/home/atatsuku/...')
#3 {main}
thrown in /home/atatsuku/www/seminar.atatsuku.com/wp-content/themes/seminar/single.php on line 19