I’ve been having this problem for a couple of days. It started while I was in the middle of a quest in ACT II, I was disconnected out of nowhere, when I tried to login again it showed a server error message. I closed the game and tried to login again, then it showed this error code in a loop.
I tried every troubleshooting in the support page, I opened a ticket 2 times (that basically redirected me to the truoubleshooting page), I tried to login in a different PC, different network, nothing seems to solve the problem.
I searched here a bunch of topics with no definitive solution, but the one that caught my attention was this:
which basically says at the end that it’s a problem on their side. Either way, when I showed it in the ticket, they replied with the same message as before, but now inviting to open a topic here, so here I am.
I really don’t know how to continue trying to play this game if they don’t even try to solve a problem that basically closes my account (the problem is only in America’s server pool, and other servers are unplayable).