Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, class Router does not have a method "sitemap.xml" in /volume2/web/lib/php/Router.php:40
Stack trace:
#0 /volume2/web/index.php(18): Router->route('/@action', Object(Router), 'sitemap.xml')
#1 {main}
  thrown in /volume2/web/lib/php/Router.php on line 40