[Zope] Error when trying pack database

Hi all, I'm trying to pack the main database ( MySQL with Relstorage ) when I hit "Pack" button is showed the error 500 below ------------- Site Error An error was encountered while publishing this resource. Error Type: IntegrityError Error Value: (1062, "Duplicate entry '251983055306698820-6697-172041' for key 1") ------------- Is there some way to fix it? do anyone know that? Thanks in advance. Regards, - - iarly selbir | ski0s :wq!