Posts not appearing in polylang-enabled multilanguage site

I have installed the plugin and checked the tickboxes for page, posts and feedback. Clicked on Create the sitemap but it does not show any of the posts in the sitemap. It is a multilanguage site translations done using polylang and lingotek. https://www.sios-apac.com .

Please help.

Thanks.

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