Scalr\Api\Rest\ApiApplication::defaultError PHP Метод

    protected function defaultError($e = null)
    {
        if ($e instanceof Exception) {
            $errorEnvelope = $this->getErrorEnvelope();
            if ($e instanceof ApiErrorException) {
                $errorEnvelope->errors[] = new ErrorMessage($e->getError(), $e->getMessage());
                $this->response->setStatus($e->getStatus());
            } else {
                if (!$e instanceof ErrorException) {
                    \Scalr::logException($e);
                    $errorEnvelope->errors[] = new ErrorMessage(ErrorMessage::ERR_INTERNAL_SERVER_ERROR, "Server Error");
                    $this->response->setStatus(500);
                }
            }
            $this->response->setContentType("application/json", "utf-8");
            return @json_encode($errorEnvelope);
        }
        return '';
    }