can't get into apple macos utilities scren

I've been trying to install catalina on my ryzen 7 2700 and gtx 1060 but whenever I click external macos base system i get this https://imgur.com/a/QLXrnZZ, I downloaded someone else config https://github.com/alkalim/ryzen-catalina#introduction, would that be the issue?

submitted by /u/CronkBronk
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