Counting proprietary (non-WordPress) posts

I downloaded the Post View Counters plugin fresh and installed it on a normal website for testing, and I find the functionality excellent and I find it very usable.

Unfortunately, I don’t know how to implement this on my website: https://mecker-ecke.com! The posts are not standard WordPress posts and are not counted. Example: https://mecker-ecke.com/forum/topic/weltmeere-und-es-geht-nicht-um-microorganismen/?part=1#postid-278. Other plugins such as tooltips and FAQs are displayed and counted.

Is it possible to also display the posts from the WordPress ASGAROS Forum Plugin (https://de.wordpress.org/plugins/asgaros-forum/)?

Thank you, Klaus Wilde

The page I need help with: [log in to see the link]