So the problem is fairly simple. You start your executable file, expect your game to start though suddenly you get this screen:
Capture.PNG 11.21KB 2 downloads
What happens, is that for some reason which might be caused due to forcefully shutting down the client, the Config.wtf erases itself, so the game does know to which server you want to connect and does not know your Locale info. Locale, is simply a term used when referring to language / audio packs. (enUS for example, is standard for English- US in most applications).
Contents of Config.wtf:
Cause.jpg 97.16KB 5 downloads
Solution: simply erase those lines, and add the following.