PHP Core Warning – yii\base\ErrorException

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

$_COOKIE = [
    '_csrf' => '3e5b868bcd106b0db830ba6b29efc077ffcc4376e5f4288a24bc4a5a4e47de08a:2:{i:0;s:5:"_csrf";i:1;s:32:"V1TkYjPv0chwpjYj_VHgr2q1vHOiPTsx";}',
    'topics-session' => '1791392068.864.16481.112637|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => 'o4p4d35mgs7tqdb2g252t8h921',
];