Mappress errors

I have Mappress installed on a WordPress blog that I’m working on and have entered in some cities and addresses. Problem is, the balloon icons look fine in the dashboard, but when I go to my actual site to view that page, that balloons are gone and gray distorted images appear and the search bar does not work.
I’ve tried uninstalling any possible conflicting plugins, and have looked over settings but can’t figure out where the glitch is.
The page in reference is here:
https://travelingincircles.com/explorecadillac/area-maps/

I hope someone can help. I’ve looked for other mapping plugins but haven’t found a reasonable alternative. At this point, I’d be willing to listen to other options.
Thanks in advance,
Susan