OK this might help someone.

About 2 years ago I added wpforo to my site. My topics where not showing in Google for 2 years.

I was told to check the seo settings and re-submit my sitemap. Nothing worked so i just thought Google would not show my pages in search results.

The first day I installed wpforo I changed the board name from community to forums. This was about two years ago.

Yesterday i changed it back from forums to the default that was community. Maybe there is a conflict when changing the name but once i done this it only took one day for all my topics to show in Google search.

Hope this helps someone if they made the same mistake as me.