PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791487063',
];

$_COOKIE = [
    '_csrf' => '37510b8850567cda9809ebed0dd248286ffe56e7dc58d5d1bcae1460c9628bf1a:2:{i:0;s:5:"_csrf";i:1;s:32:"rvo53R1Hvhg-_tFMuNlqUOaH2KnlIPIk";}',
    'topics-session' => '1791506460.284.16814.668685|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => 'msukee92t42b6qibgiq8pausk1',
];

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