PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791392254',
];

$_COOKIE = [
    '_csrf' => '679e4e214c5a303c3ff264a6a0e6ad731472b26026ccd10e9559e8cb0ae3774ca:2:{i:0;s:5:"_csrf";i:1;s:32:"2e0oUdo1ZrPJ-4dlhcXBeA4-mfzYPD9s";}',
    'topics-session' => '1791437195.109.16940.513087|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => '95vhtfj71t22d0bgifj7563bq3',
];

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