Error

PHP Noticeyii\base\ErrorException

Trying to get property of non-object

$_GET = [
    'name' => 'may-tinh-nhung-stech-arm9',
    'id' => '3',
    'category_id' => '58',
];

$_SESSION = [
    'application_id' => 'stech',
    '__flash' => [
        'error' => -1,
    ],
    'lang' => 'vi',
    'error' => [
        null,
    ],
];