Map not loading

Hello there, I just noticed that my map stopped loading. No idea when it actually stopped. I don’t see any obvious error codes and am not sure what to look for. Any ideas?

In my efforts to fix the problem, I updated my WP and plugins, so everything is up to date and I still have the problem.

http://gallica.ranchsystems.com/wp/resellers/

Thanks in advance!

https://ww.wp.xz.cn/plugins/basic-google-maps-placemarks/