Make it private. Click on "Private" button, and for any case delete website and wpForo cache, but it should work even w/o deleting wpForo cache it should reset cache automatically.
Private topics are only accessible for administrators, moderators and for the topi creator user.
In case you want to say thank you !) We'd really appreciate and be thankful if you leave a good review on plugin page. This is the best way to say thank you to this project and support team.
