You are trying to run a horribly outdated version of finalize script.This is what I get. I copied everything inside of the finalize.zip
Post automatically merged:
How can I Uninstall everything from the mod then so I can redo everything? Or should I just follow the steps without removing anything?
This is specifically why video guides are avoided to be recommended here - because they become outdated really fast.
Clean up your SD card from whatever was in that finalize.zip and follow the finalizing setup section of the guide again using the files linked there (finalize_helper.firm and finalize.romfs).