PHP Core Warning – yii\base\ErrorException

$_GET = [
    'random' => '1791368690',
];

$_COOKIE = [
    'PHPSESSID' => 'kvs9au0qbnvcp5ipus781lk852',
    '_csrf' => '0f619e1cd634254cfe75e520f8a557fbdda866dd1a540de9cceace7e05e72474a:2:{i:0;s:5:"_csrf";i:1;s:32:"CVYOCbPmiggEkcBvU3EOt7KDYaW4TZ_G";}',
    'topics-session' => '1791616233.204.16479.242129|d197bbbd1d400bd72372bc93068ad169',
];

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