Error

PHP Noticeyii\base\ErrorException

Trying to get property of non-object

$_GET = [
    'title' => 'MHC%E5%9B%9B%E8%81%9A%E4%BD%93',
    'type' => '%E4%BA%A7%E5%93%81%E4%B8%AD%E5%BF%83',
    'number' => '3',
];

$_SESSION = [
    '__flash' => [],
];