保存市场营销列表时出错

Question

我正在使用Dynamic CRM 2015.我想创建一个营销列表。单击“保存”按钮后，将显示以下错误：

以前工作过。但突然间，它不会让我保存营销列表数据：

[增订] 日志文件：

Unhandled Exception: System.ServiceModel.FaultException`1[[Microsoft.Xrm.Sdk.OrganizationServiceFault, Microsoft.Xrm.Sdk, Version=7.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]]: System.ArgumentNullException: Value cannot be null.
Parameter name: TrackingId: 1D105281, Depth: 1, Message: SandboxAppDomainHelper.Execute: Could not create the plug-in interface from the plug-in assembly: PowerObjects.Xrm.PowerPack.PowerMailChimp.CreateGroupingandMergeTags.CreateGroupingAndMergeTagsDetail: 
<OrganizationServiceFault xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.microsoft.com/xrm/2011/Contracts">
  <ErrorCode>-2147220970</ErrorCode>
  <ErrorDetails xmlns:d2p1="http://schemas.datacontract.org/2004/07/System.Collections.Generic" />
  <Message>System.ArgumentNullException: Value cannot be null.
Parameter name: TrackingId: 1D105281, Depth: 1, Message: SandboxAppDomainHelper.Execute: Could not create the plug-in interface from the plug-in assembly: PowerObjects.Xrm.PowerPack.PowerMailChimp.CreateGroupingandMergeTags.CreateGroupingAndMergeTags</Message>
  <Timestamp>2017-01-11T05:56:15.147409Z</Timestamp>
  <InnerFault i:nil="true" />
  <TraceText>

[PowerObjects.Xrm.PowerPack.PowerMailChimp.CreateGroupingAndMergeTags: PowerObjects.Xrm.PowerPack.PowerMailChimp.CreateGroupingandMergeTags.CreateGroupingAndMergeTags]
[bf7fc8e7-bced-e011-9afd-000c29eb3827: PowerObjects.Xrm.PowerPack.PowerMailChimp.CreateGroupingandMergeTags.CreateGroupingAndMergeTags: Create of list]


</TraceText>
</OrganizationServiceFault>