I apologize for the delay in response. I’ve had to deal with a personal emergency recently (my mother went to hospital) but all seems to have calmed down now. Sorry about that.
I see the following error:
XMLHttpRequest cannot load https://artistinday.com/nagymnastics/wp-content/uploads/wp-google-maps/1markers.xml?u=1098. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'https://nagymnastics.com' is therefore not allowed access.
It appears that your files are stored on another domain and JavaScript needs strict access to load an XML file over a different domain. Please have a look at the following solution: https://www.wpgmaps.com/documentation/using-the-plugin-on-multisite-installation-with-domain-mapping-enabled/
Does this help?
