Some of you may have your accounts created with social network credentials. When you try to log into the game in launcher it can lead you to authorization page but there could be no following pop-up window in browser:
If you don't have it, try to do the following:
1. Copy the link that you have in your browser after the attempt and paste it in another browser (IE, Chrome, Firefox).
2. You always can generate a password for your account. Follow this article to do that.