Uncaught Error: Undefined constant "ASC"
in /var/www/wp-content/themes/APT/index.php on line 200

Call stack:

1. include()
   wp-includes/template-loader.php:106
2. require_once('/var/www/wp-includes/template-loader.php')
   wp-blog-header.php:19
3. require('/var/www/wp-blog-header.php')
   index.php:17