Still waiting for an answer...
As you can see in the screenshots provided below, your forum URL is https://leastrisk.com/ community/, but you make a search using https://leastrisk.com/ forum/sitemap.xml, thus you will get the wrong result Google Search Console. See the screenshots below:
This Is only because Last Night I Reset Wp Form setting to default and was trying to see if this fixed the problem,
I myself changed forum to Community But again this did not solve my problem in google search console. and it is still showing in site maps that "0" URL discovered.?
If now everything is correct, and you make a search with the correct forum slug, then there should not be such an issue anymore.
Besides, we've just checked on your website and the forum sitemaps are existed and work fine, See the recorded video below: 
Yes, it Worked, So The answer for anyone looking for google search index problem lies in the fact that we need to use community in url or use default wp-foro settings, I just reset the forum urls and google is discovering URLs now.
Thanks
We'd really appreciate and be thankful if you leave a good review on the plugin page. This is the best way to say thank you to this project and support team.