Map unavailable (after being available)

Hi there,

A strange thing happens. When I create an event there often isn’t a map available on the front end despite there being a physical location.
So/ I go into WP and Event locations and re/add all the details. Happily then the map appears for both logged in user and non (new browser etc).

However, after a certain period (say the next day) the map is unavailable again.

Any ideas?

The page I need help with: [log in to see the link]