PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791128141',
];

$_COOKIE = [
    'topics-session' => '1791265606.936.16479.582079|d197bbbd1d400bd72372bc93068ad169',
    'PHPSESSID' => 'ar80l3a4t31pr2bem0o6277dh1',
    '_csrf' => '6a78dfe293740f15b1265a5deded7a9dae80261a64dfb3e524ee7b173a28b30ea:2:{i:0;s:5:"_csrf";i:1;s:32:"KGLRnbEn_VjS8t3Ep1lljhZYOvmJDFSD";}',
];

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