failed patch

greetings.,
i downloaded this game world of Warcraft "wrath of the Lich king" but i cant login its saying failed to apply patch..
http://pictub.club/image/XjGWF
http://pictub.club/image/XjY6j
i try to do manual patch but its not working., i try to turn off and on everything but not working., i mean i need someones help.
thanks

Do not upgrade the client, you have to log in with your username, not email.

I am getting. The same thing. Any solutions?