Posts sometimes not showing on page

The posts on this page sometimes not showing on either the laptop web or the mobile web. They will come back without doing anything. This issue happened a few times recently. All other pages are working normally and consistently. I have tried to clear the caches and refreshed the page when the posts are not showing, but this doesn’t help. Can someone please help me with finding the issues. Thank you.

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