PHP Core Warning – yii\base\ErrorException

$_GET = [
    'redirect_url' => '/yjds2016/cases/match',
];

$_COOKIE = [
    '_csrf' => 'cbdd0edf19969cd6385031bce89868dd9e6affe04b4acb5a236697a550b08558a:2:{i:0;s:5:"_csrf";i:1;s:32:"P04Gdc38mAYARuIo8KH-UWcueppscd1j";}',
    'topics-session' => '1791931342.211.17009.851526|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => '4loe0u3e0020avvidef6a57q42',
];