stream problem

Hey,
I just wanna try pop stream on Warmane but I can't coz -> Invalid twitch channel supplied, try again

I try add "twitch.tv/aisperwine" , "http://www.twitch.tv/aisperwine", "www.twitch.tv/aisperwine".

But still can't add.

Can you help me guys?

just add aisperwine no www. junk

Thanks !!!!