@e_hink27 Welcome to the Rockstor community.
The error you received is as a result of your system disk not having a unique serial attributed to it from your hypervisor / VM architecture. VMWare perhapse?
Please see our Minimum system requirements specifically:
All drives must have unique serial numbers (real drives do); not all VM systems default to this
as we depend upon udev generated by-id disk names and udev depends upon drive serial to identify uniqueness.
Hope that helps.