DRBLSRV -i error on Fedora Server 37: No yum repository setting found!

[DavidGeeraerts]

DRBL: drbl-4.5.16-drbl1.noarch.rpm

Operating System: Fedora Linux 37 (Server Edition)
CPE OS Name: cpe:/o:fedoraproject:fedora:37
Kernel: Linux 6.1.8-200.fc37.x86_64
Architecture: x86-64
Hardware Vendor: Dell Computer Corporation
Hardware Model: PowerEdge SC1425
Firmware Version: A03

SELINUX=disabled

*****************************************************.
Installing DRBL for RedHat/Fedora Linux...
Your OS version is:: FC37
*****************************************************.
Do you want to set up the proxy server?
[y/N] N

*****************************************************.
No yum repository setting found!
You must set the yum repository in /etc/yum.repos.d/!
*****************************************************.

Program terminated!

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Why would a yum repository be needed?