Hi,
Our administrators handle all account deletions. I would suggest you email technicalsupport@adult-fanfiction.org with the archive profile name, from the email account used to create or register the account. If you no longer have access to that email address, but can remember it, you should include that information in the email to help verify your ownership of the account.
Our admins do have real life obligations that keep them more than busy, so it can take up to 48 hours, and sometimes longer, to process a deletion, so please be patient.
Thanks!