It seems that a domain registered under me (aglocoearners.com) was used for phishing. I don't know how it happened, since I haven't touched it for a long time.

I've now gotten emails from people telling me that they've reported me to authorities and that I'm going to jail? What do I do now?

I've attached server logs. Sadly, I don't understand what to look for.

Any help / suggestions would be appreciated.

It looks like the phish has been terminated. I have submitted the logs for you.