Again this is very simple to breakdown and has been discussed before. XXXX DB INIT ERROR always and I mean ALWAYS means that the server in question (Auth, Game) has failed to connect to it's requested server. That means one of the following: the server databases are; offline, not set to be connected to remotely, database port is not properly forwarded, opt db ip not set correctly, opt db username/password are not set correctly.
At this point I would advise professionally that you quit, you knowledge of even basic server operations is severely limited -- before you say we "all we're noobs once" hate to tell you those of us who have a name here never once haved asked such trivial questions because it's not that hard to figure out with some processing @brain.exe and a little information retrieval via Google.com sometimes multiplied by a little common-sense.
No offense intended, have a great day.