PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791497236',
];

$_COOKIE = [
    '_csrf' => 'd11334de88f6372547078ce054ec23f596f006f1157e302779b9d06810d0adc7a:2:{i:0;s:5:"_csrf";i:1;s:32:"v8R0a-4PPy3Am32fqrjZeBdtUKScwzaE";}',
    'PHPSESSID' => '7nl404pilf694ea1vpma8hd4m1',
    'topics-session' => '1791747482.377.16974.117246|d197bbbd1d400bd72372bc93068ad169',
];

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