PHP Core Warning – yii\base\ErrorException

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

$_COOKIE = [
    '_csrf' => '4849022cb5ca543c7b629b1ee5540fefc7d52a659e7a5e4233108a084c4e39c3a:2:{i:0;s:5:"_csrf";i:1;s:32:"GlknObL0wLaIoN18BP8A0bxgXUPPuNLc";}',
    'PHPSESSID' => 'gqavmiu0rmnr24vjanqcjbj5e4',
    'topics-session' => '1791962886.139.16479.950737|d197bbbd1d400bd72372bc93068ad169',
];