PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1790966146',
];

$_COOKIE = [
    'topics-session' => '1791324998.142.16476.341323|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => 'ba99934107b2b3e608afd52d147371445cd643acf8777f721fca694207d13510a:2:{i:0;s:5:"_csrf";i:1;s:32:"Lm-0OuJ0Zx8ys2QyBxYKeDvWNk6ljIVr";}',
    'PHPSESSID' => '0smv83l1qi6g8gv124dhle9eg3',
];

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