Problem to get bright 9.1 ISO

Hi

To meet the requirement for software we need to run, I need Rocky8.4. Without any luck, I’m trying to get Rocky8.4 bright 9.1 ISO

Our current BCM11 installation is aready running rocky 8.10 and rocky 9.6.

In order to get that old ISO, I request a license where I specify 1 server and 1 node, I only need the basetar for rocky 8.4.

I generate the key for Bright 9.2 and prior , but when I try to download the ISO, from

I receive the following error message
An error occurred. Please try again.
Error: Could not obtain license: Could not generate certificate string using CA util: Invalid MAC address/instance-id: ''

Anyone have an idea how I could get my hand on that ISO, or maybe if this is legal, send me a download link to the basetar file on the ISO, most likely in the data directory and named ROCKY8U4.tar.gz

Regards