PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791367136',
];

$_COOKIE = [
    'PHPSESSID' => 'nbq44a36c08l130phjthlrnfq0',
    'topics-session' => '1791508057.896.17043.26627|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => 'b8d28130fbd69bf21322361fb9b9baef78ad76b85dc55aed5331105305c2523ba:2:{i:0;s:5:"_csrf";i:1;s:32:"YQvKcG3V8tY5R9MGqK4ASMjP3Jsmp0H9";}',
];

$_SESSION = [
    '__flash' => [],
];