PHP Core Warning – yii\base\ErrorException

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

$_COOKIE = [
    '_csrf' => 'e51d5ab4d008bb2be8c76ad63ca12bb4538a988f33707aa5fa925adab7d9f012a:2:{i:0;s:5:"_csrf";i:1;s:32:"NWSM7O57mtBY59rGdmq3UgQoG5ccibyD";}',
    'PHPSESSID' => '678kjhk67io018hnut5mjk7c64',
    'topics-session' => '1791179993.665.16482.457928|d197bbbd1d400bd72372bc93068ad169',
];