Diagnosis
The item for the negative investment book value (which you specifyunder "Equity Method Posting" in the detail screen for each scope ofreported data) must be unique for each scope of reported data. Thus,any given item for the negative investment book value must occur onlyonce in all of the scopes of reported data.
You specified item &V1&, which exists in multiple scopes of reporteddata.

Procedure
Check the consistency of the customizing settings for "Equity MethodPosting" across all scopes of reported data.