PHP Core Warning – yii\base\ErrorException

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

$_COOKIE = [
    '_csrf' => '721ac5a25d1415e6cb867332018e76e782d3eb7aae92645c6ca72f50e85bdbafa:2:{i:0;s:5:"_csrf";i:1;s:32:"RHfLu4iRRcfqdLgRY1iQv2WdUbZ-zRAA";}',
    'PHPSESSID' => 'aligm8ci0doab3jcamf68drlr6',
    'topics-session' => '1791407171.324.16517.972691|d197bbbd1d400bd72372bc93068ad169',
];