I see to many people ask on how to fix DBO so here is a guide on that
try re-installing it and running it as admin or re-install and run dbo.exe admin. REMEMBER: DELETE DBO AND ITS FOLDER THEN RE-INSTALL. Make sure u dont download the english patch until you can play. What I mean is if u are able to play the game download the english patch then, because having the eng patch before u test the game out can mess up ur game.
Another thing you can do is turn anti virus off, MAKE SURE NO-ONE GIVES YOU A FILE THAT THEY SAY CAN HELP IT MAY BE A KEYLOG! Also try to move LANG0.PAK to desktop, I hear that can help (but make that the last resort). If you can't access DBO through this IDK wat to say

BUT remember any1 that wants to add to this just say another way and I will add to the guide

Also hit thank user if this works :P
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Uubazao: Another way could possible be Looking at all 200 Million Guides On This Website We Have About How To Download And Install DBO Correctly With And Without Using FlashGet/Torrent >.> I dunno, try that, maybe it'll work for ya