object(Bitrix\Main\SystemException) 
[
"protected:message" => string(84) "Unknown field definition `USER` (USER) for \Realweb\Api\Model\Iblock\Element Entity."
"private:Exception:string" => string(0) ""
"protected:code" => int(100)
"protected:file" => string(76) "/home/h008391719/avenger.ru/docs/bitrix/modules/main/lib/orm/query/chain.php"
"protected:line" => int(346)
"private:Exception:trace" => array(15)
"private:Exception:previous" => NULL
]
{"result":0,"data":null,"errors":{"DEFAULT":"\u041e\u0448\u0438\u0431\u043a\u0430"},"title":null}