This account needs to be recreated. The document roots are all missing (a bit of a pain to fix, when removing infected websites its best to remove the contents of the docroot but not the folder itself) and it's redirecting for me when I see no reason it should be (though obviously CF could be messed up). It's also an old cPanel migration account, so it had likely had a bunch of quirks from that as well.
An invite for a replacement account has been sent to you. Let us know when it's recreated and we can restore your legacy .heliohost.org subdomain and add professorparticular.info back to it.