Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, non-static method App\Home::index() cannot be called statically in /opt/gio/src/app/Router.php:26 Stack trace: #0 /opt/gio/src/app/Router.php(26): call_user_func() #1 /opt/gio/src/public/index.php(36): App\Router->resolve() #2 {main} thrown in /opt/gio/src/app/Router.php on line 26