Ajax container error

Hi Victor, i need help with the above page. I cannot solve this problem.

It appears that this page does not contain a container with the specified «HTML id or class of the Posts Container». Try to specify the correct one in the Filter Set settings or the common plugin Settings.

What do i enter in the FEverything section “HTML id or class of the Posts Container” from the website?

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