Install the plugin called “User Role Editor”. Open its functionality under Users > User Role Editor. Now click the button with the red text that says “Reset”.
Never mind I just fixed it. In case anybody else experiences this problem, here is what I did:
(back up database first)
1) deactivate BBPress
2) install User Role Editor
3) Click the red Reset button which will reset all roles to WP defaults
4) Re-activate BBPress.
