PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791095207',
];

$_COOKIE = [
    '_csrf' => 'eb415815021b72730c4fe06cb6aa62613fda289e1881c9b55637120349b76d47a:2:{i:0;s:5:"_csrf";i:1;s:32:"F5fVj-9pzpou70QJn53PDrppA9jofosj";}',
    'topics-session' => '1791144121.352.16517.488836|d197bbbd1d400bd72372bc93068ad169',
];

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