PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791459970',
];

$_COOKIE = [
    'PHPSESSID' => 'kanaae2om9h5kr5kovmfcfvqr5',
    'topics-session' => '1791571274.693.17008.874604|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => '6fcfd92f8372921da7b37f42715bdee2fb11c4430c6d310d02c95f5484bcbe4fa:2:{i:0;s:5:"_csrf";i:1;s:32:"_UuQYOhjIkXDf9JxJ5p5IGSN7-bcT88Z";}',
];

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