This forum is closed for new topics. However, you can still search for a solution in the old topics. For technical support and general questions related to GEO my WP plugin and its core add-ons please use the support forum.
Looking at the page you linked above, the map seems to be working. I assume that you fixed it? Otherwise, gray map with icons showing usually indicates on a temporary slow connection ( slow WIFI or data ). So by now it should work fine for you.
Let me know if that is not the case and if you are still having this issue.