PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791222397',
];

$_COOKIE = [
    'PHPSESSID' => 'rg5irkdh26jdkemau0npd48ci6',
    '_csrf' => '6a99221b37c92683007e24e7e3d54945033e9de210181c8d90b95c10521541a9a:2:{i:0;s:5:"_csrf";i:1;s:32:"0duBEnTOX1w2zcvcqUS0-FAJ-97jgYqr";}',
    'topics-session' => '1791322464.121.16940.6705|d197bbbd1d400bd72372bc93068ad169',
];

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