Hi guys. This is just a solution I got for BuddyPress forums. I was getting error "Access Denied".
What I have done before while installing Buddypress, at the last wizard option of 'installing forums' I have selected 'On existing Installation'. And this is causing this problem.
So I just uninstall forum and reinstall 'New group Forums' instead of 'Existing Installation'. And this supposed to be working for me.
Just sharing the solution that worked for me.