PHP Core Warning – yii\base\ErrorException

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

$_COOKIE = [
    '_csrf' => '203773a928078447accc4b9b9e44a8fb89297c46d049b8ff83baba555ac7a915a:2:{i:0;s:5:"_csrf";i:1;s:32:"Ouk_PvqMtotUTE-6toHB7SWdCMvb7jFX";}',
    'PHPSESSID' => 'l03tqvna8e57rhnoplnksfo7k0',
    'topics-session' => '1791228341.23.16479.607663|d197bbbd1d400bd72372bc93068ad169',
];