PHP Core Warning – yii\base\ErrorException

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

$_COOKIE = [
    '_csrf' => '3735166f3e53e7237089d9bc94df7df9daa14954be9dadeb44f8456124308046a:2:{i:0;s:5:"_csrf";i:1;s:32:"Q-_6FgY2eCDuiFlQ_XmFPxlY1nH2y_07";}',
    'PHPSESSID' => 'e7m0pdpjg1e9dog4fgjk46ji12',
    'topics-session' => '1790904384.244.16958.226605|d197bbbd1d400bd72372bc93068ad169',
];