Missing facets

Hi everyone,

I'm working with dataset preview (grid, graph and map) in Drupal 7.61 and the main issue is when I choose the button “Fields” (as you can see in the image below) and I try to see the content of each field, the result in my server is empty (in this case, I have 2 reference classes: panel-body and clear), however, the result in another test server (Pantheon with Drupal 7.60) is not empty (here, I have more classes that are missing for some reason: facet-summary, facet-items and facet-item). Do I miss a library maybe?

Is there a fix for this issue?

Thanks for going into this.

Cyntia.