nodemap_get_address_geocodes is not defined

The Firefox error console reports:

Error: nodemap_get_address_geocodes is not defined
Source: http://smoklang.rohton.de/?q=node/add/termin
Line: 1

I have created a content type "termin" to allow announcement of events. Using node map I want to allow specification of an event location. I cannot use the "Adress" search field. After entering an address and clicking the search button, the search bar begins to run and never stops. No timeout.

I am nearly sure that it is not a server problem of the "localhost" kind, because I run my website at a professional hoster. That means, changing the apache config is out of reach as well.