PHP Core Warning – yii\base\ErrorException

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

$_COOKIE = [
    '_csrf' => 'fe4553f2242d7232b688f127a8c872b28f726d1816da1d89354baf105e22a11ca:2:{i:0;s:5:"_csrf";i:1;s:32:"jBp8BdsgJ_j7JMp1nbSLi_zctPRvCtih";}',
    'topics-session' => '1791482014.517.16479.586345|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => 'pf7brqesnhvnbee19ou6rsp073',
];