I'm not sure this belongs here, and if it doesn't I'm sorry. But I don't see anywhere better to put it.

To be curt, I got a new phone a while ago and I just installed PSO2es on it to buy some AC. I got the error 006 and now it's asking me for a 16-digit login code. I read on bumped.org's PSO2es guide that it's a code I need to periodically keep track of on PSO2es, which I had installed on my old phone.
However, I can't access the old phone or the code because I traded in that phone to get the new one.

What can I do? How fucked am I?

Addendum: I never even knew this code was a thing, so I have no previous records of it.