У вашего броузера проблема в совместимости с HTML5
Welcome new players! Glad to see you join our community and look forward to meeting some of you and getting to know you. Hope you enjoy it here!
Here are a couple of links that may help EU players get the NA client up and running:
1:http://forums.warpportal.com/index.php?%2Ftopic%2F124225-users-is-not-a-valid-group-problem-fix%2F
2: http://forums.warpportal.com/index.php?/topic/111619-how-to-fix-the-security-error-during-installation/
Hope this helps you guys out!