Authentication to NAS Disk / wie Authentifizierungseinstellungen zur NAS-disk ändern ?

I've done 10 backups to my new NAS-System. Now I'd like to restore a backup from this NAS-System. Acronis wants to authenticate, but uses a path to my old NAS-system, which is no longer available.

How can I change the path to authenticate to my new NAS-System?

Thanks