MyBB Community Forums

So Im new to MyBB and well anything that I need to be technically inclined for and have come into sort of a rut.

I have my forums up and almost running, there's just one small problem. Nobody can post on it. A few people I've asked and I have all looked for it but its nowhere to be found. Any help would be appreciated.

Check the permissions for the forums they are trying to post in.
Admin CP > Forums & Posts > Topic > Permissions

See the following screenshot for help finding this.