Issue with Google Maps plugin

Howdy

We've installed the Google Maps plugin on one of our sites within the http://www.gpadviser.com.au multisite - the site is http://mytops.com.au/.

The plugin is throwing an error - see the map on the http://mytops.com.au/contact-us/ page.

It looks as though there's a problem with the Google Maps API key?

We're running the latest version of the plugin 2.9.0.8.

Please have a look into it and let us know what the problem is.

Cheers
Clair