Can't Publish Posts, Even With SuperAdmin Permissions

Hi,

I just installed Easy Discuss, trying to publish a Test Discussion. When I click "Add a Question" (or even New Topic), I receive this message.
"Sorry, you haven't sufficient permission for this action". (it's my translation 'cause the message is in italian)

I have spent much time troubleshooting, but I'am stumped. I give permission to do everything on the backend, I think I've tried everything so now I'm surrending and asking to you... where I'm wrong?

Thanks