PHP Core Warning – yii\base\ErrorException

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

$_COOKIE = [
    'topics-session' => '1791274212.734.16855.142499|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => 'e7g48kk69b58nf9236ii7lph72',
    '_csrf' => '1b9bc157c08757c373f636ad28fe9c7fd6977cf2b9c21a7f8540556d97981620a:2:{i:0;s:5:"_csrf";i:1;s:32:"-prnaamqktlh3rPm5_4jDT8Op40nVJwE";}',
];