我正在使用Hyperledger Fabric 1.2版并运行Fabric-sample的基本网络代码。我的订购者和对等设备在不同的VM上运行，而客户端在另一个VM上运行。我能够成功注册管理员并在频道上注册用户。
我的查询结果给出正确的输出，但是在写操作（类似于invoke.js）期间，出现以下错误：
Successfully loaded user1 from persistence
Assigning transaction_id: 6796d5de029a1aea5c54dd662d311286b3888e3e1bd6b2b4bb2a81086c467ff0
Transaction proposal was good
Successfully sent Proposal and received ProposalResponse: Status - 200, message - ""
Failed to invoke successfully :: Error: There was a problem with the eventhub ::Error: Received status message on the event stream. status:BAD_REQUEST
代码链接为：http://collabedit.com/jg6db
此错误的原因和解决方法是什么？