PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1746883553',
];

$_COOKIE = [
    'topics-session' => '1765913364.653.15685.3874|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => '56bgf98v95jcu5v26pjm6umua5',
    '_csrf' => 'c21ce63f274c22ba91f9d4bbf8bb9c81860a00feb58fd4c90b97fdc8c1f6689ea:2:{i:0;s:5:"_csrf";i:1;s:32:"rKZTXZDB5nGInnFBiK2wzg02b2ww2EKf";}',
];

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