Pandaria Cannot login

[gundam0]

I downloaded the Myst of pandaria
When I try to connect using my warname account gundam64 I am asked to upgrade the accout on the Battle.net and login fails

[fox25]

me too! :(

[Mitzen]

1. Restart your PC.
2. Close and exit torrent.
3. Move your WoW -folder to other folder, away from Torrent's Download folder.
4. Right click WoW -Folder, select properties, un-check "Read-only" and Apply.
5. If you get prompt, Apply changes to this folder, subfolders and files and click OK.
6. Warmane realmlist guide
7. Login by using username, not email.