PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791931335',
];

$_COOKIE = [
    'topics-session' => '1791969040.721.16855.650110|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => '6720e1877fcca76e0e252d600cb5f552c95ca8fd2aa77182b1cc62d68866520ea:2:{i:0;s:5:"_csrf";i:1;s:32:"K5HS-P3CRPHsLiladLoydijermqdvKRG";}',
    'PHPSESSID' => 'pf3v9a991jjvmu5djcl7p0poj1',
];

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