nothing to see - rien à voir

Hallo!

I've used contactMaps in another site without any problems; but this time I have no idea at all - nothing is displayed:

feuchte-keller-abdichten.de/index.php/kontakt-info

I've double and tripple checked all settimgs . but no idea what to do.

I understand french - so pls answer either in english, german or french.

Thanks
vanbrel