PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791002855',
];

$_COOKIE = [
    'topics-session' => '1791027409.57.16517.816229|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => '6qqjc3h41r84j0dgbsdfgbujf5',
    '_csrf' => '1f897be4ba7ce5af10580aa6b119e4f1ff6374b91b5ea981eda2ee7afd4f97e7a:2:{i:0;s:5:"_csrf";i:1;s:32:"pqlRieablfX4gxCOVVHpgO-uiHSqQlrv";}',
];

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