PHP Core Warning – yii\base\ErrorException

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

$_COOKIE = [
    'topics-session' => '1766135039.136.16209.365599|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => 'a4eab79e0f2ae2692ccb243800408735768214916b73caee60018d5e028bcbc1a:2:{i:0;s:5:"_csrf";i:1;s:32:"TkRRKq7IeHECJw6BLbcPlUw4QKeKqEv9";}',
];