Sounds like failed login attempts may have been stored in plaintext as well, meaning passwords you use on other sites may be included in the now-public data dump also.
My suggestion then would be to go through and change your passwords
essentially everywhere, ASAP, (and not just domain stuff) if you think you "might" have tried logging in with it at Epik in the last 10 years. This means your emails, crypto, online banking, domain marketplaces & registrars, streaming services, restaurant apps, game apps, etc -- anywhere and everywhere you may have used a potentially-leaked password.
Going forward - be sure to use strong, unique passwords everywhere online. Pain in the ass for sure, but this is the reality of the world we live in.