Error Applying Retention Label to SharePoint Document Library using console utility

[dpknamdeo]

I have developed console utility by using CSOM C# and below is my code. Earlier it was working perfectly fine but from last week I am encountering issue.

var applyToExistingItems = true;

SPPolicyStoreProxy.SetListComplianceTag(clientContext, listRootFolder.ServerRelativeUrl, "Permanent (100 Years)", false, false, applyToExistingItems);

clientContext.ExecuteQuery();

Error:

"Value cannot be null. Parameter name: Empty correlation Guid"

Do you have any idea why working code stopped working.

I appreciate your help in advance!