Spark problem with logging in

Hi all,

I have a problem with Spark, I am trying to login but I can’t. The server ( is keep telling me that the username/password is invalid, although I am sure that the combination is right. Aslo, I have created new account this morning, but when I try to login I also get the same message (invalid username/password). Anyone has a clue what is going on?

Thanks server was out of memory and freezed, few days ago it was restarted, so now it should work ok.