PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791391162',
];

$_COOKIE = [
    'topics-session' => '1792034573.033.16814.156956|d197bbbd1d400bd72372bc93068ad169',
    '_csrf' => 'e5f9e9aff066e8d8bacb45ca1746a3369597b4fbe5026630b73313cf5552ab38a:2:{i:0;s:5:"_csrf";i:1;s:32:"C6c1tQ3g-4Lzkz8xk9Y6_3z-3BmZN08N";}',
    'PHPSESSID' => '82qan2t1nvklndrsl0t16vosq2',
];

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