Error 500
message : Uncaught Error: Call to a member function getNickname() on null in /www/helper/usr/ctrl/Article.php:57 Stack trace: #0 /www/helper/lib/Router.php(154): Ctrl\Article->Detail() #1 /www/helper/index.php(22): Lib\Router::dispatch() #2 {main} thrown
file : /www/helper/usr/ctrl/Article.php
line : 57