The account tycoon has been removed and the domain of tycoon59 has been changed to http://tycoon.heliohost.org/ Please give it a few hours for everything to update, and if something still isn't working, please let us know.
The delete failing might be related to this issue: https://www.helionet.org/index/topic/40633-krydos-ricky-apache-restart-stuck/ Please check your email and reply to confirm you want the account above deleted manually and I'll remove it for you. Once I do that, I can make the domain match your old account. We cannot change the username of an account though.