Redhat 8 2 install Server vs workstation differences

The title says it all. I have an x64 RHEL client that I would like to back up to my mac retrospect server. I installed the redhat client, but got several swing errors in the gui, and errors occur when I try to hit apply or ok. Is there a process to set up the client without the gui? Or will it simply not work at all?

Seeing as redhat is really not free, you HAVE!!! to buy a support contract if you want updates

have you contacted redhat tech support ?
you are paying for that support you might want to use it

I installed the redhat client,

how ?
using yum ?
or from a random file you found on the internet ?