PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1765690825',
];

$_COOKIE = [
    'topics-session' => '1765813782.88.16013.328307|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => '14dd8a41545dafd497cb829f43acc7b7ea631492dda179868ac5e620d6d6b8f1a:2:{i:0;s:5:"_csrf";i:1;s:32:"ZUMRyC6M2BEwG9ifRBtoaYh54YHC37yR";}',
    'PHPSESSID' => 'nr6rliop5lfv3jh1tppdbbh2v7',
];

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