Failing To Join Wynncraft

It says when I try and join Wynncraft "Failed to connect to the server" "You are already logged in" "It may help to try logging in again in a few minutes" "If this does not resolve your issue, please contact staff".

I have waited for about half an hour and I still can't join and also I can hear the Detlas music and all the sounds that I would normally hear if I was logged in.
Please tell me what I can do to join back into Wynncraft.

 

Have you tried restarting your Minecraft client?

 

Yes I have tried to restart my Minecraft many times

________________________________

I still hear Wynncraft sounds even with my Minecraft closed

 

Restart your computer then.

 

It works thanks.