Cant log in....

I know my account work.... got lvl 255 yesterday... but 2day when i want to log in, it looks like it works fine but it go stuck at succes, you know when you log in there comes alot of things like succes.
And then if i wait abit it will show the severs and the sever is green and looks online. And if i
click on it will i get stuck at succes again.