PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791244405',
];

$_COOKIE = [
    '_csrf' => '3559253ba83a96df6229eeef97764e832045f5c15a974b578aa61dac07c6b6e2a:2:{i:0;s:5:"_csrf";i:1;s:32:"ZLuA0-4JGJWPhWl9-jrpjlvnnpiqMWnq";}',
    'PHPSESSID' => '927rj24j8l1sppmv7d2flbgb46',
    'topics-session' => '1791657047.024.16479.597616|d197bbbd1d400bd72372bc93068ad169',
];

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