account needs to be converted to battle.net error

my friend that tried to join the frostwolf realm has the following error while logging in : http://postimg.org/image/a8rzt6qup/

anyone has an idea how to fix it because he really can't play like this and already tried to redownload the game.

My realmlist is warmane. I think i do every thing.
*Delete WTF
*Ad in config.wtf :
SET realmlist "logon.warmane.com"
SET patchlist "logon.warmane.com"

*Disables windows firewall
*Uncheck read-only ( but it is not uncheck )
*Reinstall WoW

I dont know what can save me

Try THIS or THIS
You can also try to reboot your router

I use the comand [ping logon.warmane.com] and i have connection
+ i have any anti-virus active

My config.wtf content

SET realmlist "logon.warmane.com"
SET patchlist "logon.warmane.com"
SET locale "enGB"
SET installLocale "enUS"
SET hwDetect "0"
SET videoOptionsVersion "5"
SET gxApi "D3D11"
SET gxWindow "0"
SET gxMaximize "0"
SET maxAnimThreads "1"
SET readTOS "1"
SET readEULA "1"
SET readTerminationWithoutNotice "1"
SET Sound_MusicVolume "0.40000000596046"
SET Sound_AmbienceVolume "0.60000002384186"
SET farclip "600"
SET particleDensity "40"
SET waterDetail "1"
SET reflectionMode "0"
SET groundEffectDensity "40"
SET groundEffectDist "110"
SET environmentDetail "75"
SET terrainLodDist "300"
SET wmoLodDist "300"
SET terrainTextureLod "1"
SET terrainMipLevel "1"
SET worldBaseMip "1"
SET weatherDensity "1"

Hey guys

Got the same problem.
Wanted to start today on this server.
But Wow wants me to change my account into a Battlenet.account.


PS: Can i also post in german?
My english isn´t very well.

Same here,your account needs to be converted to battlenet etc etc it worked earlier this day,what's going on?

Bump, still got this, any help?