Error

PHP Noticeyii\base\ErrorException

Trying to get property of non-object

$_GET = [
    'title' => '%E6%A0%B8%E9%85%B8%E6%8F%90%E5%8F%96%E6%88%96%E7%BA%AF%E5%8C%96%E8%AF%95%E5%89%82',
    'type' => 'product',
    'number' => '1',
    'second' => '3',
];

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