leafletJS files are missing

I have a error message in any pages/articles on the site https://www.fotografodiguerra.it/il-primo-colpo-che-diede-inizio-alla-battaglia-del-solstizio/

Travelers’ Map is loading…
If you see this after your page is loaded completely, leafletJS files are missing.

In devtool Console the message is:

Uncaught ReferenceError: cttm_options_params is not defined
at initTravelersMap (travelersmap-bundle.js?ver=2.1.0:141:27)
at HTMLDocument. (travelersmap-bundle.js?ver=2.1.0:595:5)

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