I'm not familiar with Huntarr (looks like something to do with Plex), but it looks like it was a vibe-coded (gen AI) system with huge security flaws and when these were raised with its author he simply blocked everyone and deleted everything and went into hiding: https://old.reddit.com/r/selfhosted/comments/1rckopd/huntarr_your_passwords_and_your_entire_arr_stacks/

If you or someone you know have used #Huntarr, it's time to nuke it from orbit and do some personal security auditing.