no such domain

Hi, I have one problem when run import backup, in the second time that I run the import i got this messages:

Error: ZxBackup Notification, External Restore failed.
- exception -
com.zextras.lib.Error.RestoringServerLayoutError: Exception when restoring server layout
Caused by: com.zimbra.common.service.ServiceException: system failure: no such domain f0ae769d-cadd-4c29-a8ee-614613025bcf

after that error, when i run the import i got the the same error again.

I wil try to restore backup from zimbra 6.0.7 to zimbra 8.7