I want to create paid forum like the user first paid the forum charges then they have access to see forum topics can create questions.
please let me know how I can create paid forum with no open source?
You should choose and install a good paid membership plugin and provide access to the forum page to paid members. It would be better if you read this information as well: https://wpforo.com/community/wpforo-integration/ultimate-membership-pro-integration/#post-21911
Related topics: https://wpforo.com/community/?wpfs=paid+membership&wpfin=tag