Moveclient.vbs Failed to move client error

I'm using MoveClient.vbs Version 3.06. I want to move my clients. Some clients i get error:

02.09.2015 12:33:10    ::Moving Client 'd70d9003' User 'Administrator' to group: 'Meine Firma\_Agent_OLD\OU_Anwendungsserver' ID: 25C9D60A0A03038901B040BB9C2FC07E
            ::Original group was: 'Meine Firma\_DomainControllers' ID: 0B3D1BBD0A0303890092A7C41780ACF5
                ::Failed to move client error -2147467259