Hello, @nitrat
As I can see, you are using Yandex map on provided page. Have you already switched Google Maps Easy plugin to another one?
Mentioned error means that Google Maps scripts are connected to your map page multiple times. In most of such cases – this problem is in your custom WordPress theme.
If your theme includes Google Maps – please ask your theme developer to make sure that Google Maps scripts are connected only on the pages, that use Google Maps, and not on all site pages.
You can also check if problem is in your theme by switching to default WordPress theme. If problem will gone with default WordPress theme – then it is in your custom theme.
It is also possible that on your site a few map plugins are enabled, in this case, please, disable other plugins and the problem should go away.
