You got the hs.app from the Health&Safety app. You weren't supposed to get the FBI.CIA or FBI.zip. You have to download the latest release from Plailect's guide.
I'm following https://github.com/Plailect/Guide/wiki/rxTools-Browser
and I'm on the 12th step
12. Extract Universal Inject Generater, then copy both hs.app from your SD card and FBI.cia from the FBI zip to the input folder
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Looks like the instructions were not clear
It should say;
Copy hs.app from the root of your sd card and paste inside input folder.
from FBI.ZIP copy the FBI.CIA and paste in the input folder.