Hi there,
My apologies for the issues you are experiencing. Indeed, when i try to open the link on my phone, the map doesn't show up. I have tried remotely debugging via USB but annoyingly no error is showing up.
Please could you do me a favour and create an empty WP page or post on your site with a map in it (and absolutely nothing else), and then send me the link so that I can test it that way.
Email: steven@easy2map.com
Many thanks,
Steven