PHP Core Warning – yii\base\ErrorException

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

$_COOKIE = [
    '_csrf' => '66dede9b79154db9327a382ddd895414cf406dbb5f843864317cdee16816df15a:2:{i:0;s:5:"_csrf";i:1;s:32:"Hk9mtwzdbVoqRoVPpKQS1ulENrig7NA6";}',
    'topics-session' => '1791244018.253.16901.647101|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => 'phfs9a13dcctvgcf02i89o2n40',
];