MyBB Community Forums

One of the moderators on my forum tried to ban a member but got the following message.
There is only 1 group which is set to "This is a banned group".
What else to do?
I'm also getting the same message.
Banning through AdminCP does work.

^ Did you selected a group,
If you did try to make another group banned and look if thats working!

see ban user in Mod CP