EROR!!!!! Not Login!!!!

[DHidinahuy]

I have a problem. I registered account and activate it. but when i try login in game i have a "error authorization". the problem is not in client,becouse my friend gave his account, and under him, I can login .My friend was unable to login under my account too. with these login and password, I can login to the forum and site http://www.uodreams.com/.
so where problem?