KeyError: no matching postcode

    in /var/www/html/martini-git/lib/geo.php at line 970

#0 /var/www/html/martini-git/lib/geo.php(882): Location->assertPostcode()
#1 /var/www/html/martini-git/src/core/GeoInformationService/WeatherService.php(18): Location->getPostcode()
#2 /var/www/html/martini-git/src/core/GeoInformationService/WeatherService.php(126): WeatherForecast->getList(Object(Location))
#3 /var/www/html/martini-git/src/modules/LocalInfoModule.php(1072): WeatherForecast->populateTemplate(Object(SitePage), Object(Location), Array)
#4 /var/www/html/martini-git/src/modules/LocalInfoModule.php(138): LocalInfoModule->handleListRequest(Array)
#5 /var/www/html/martini-git/src/web.php(425): LocalInfoModule->handleDisplayRequest(Object(HttpRequest))
#6 /var/www/html/martini-git/src/web.php(85): RequestHandler->handleRequestInternal(Object(HttpRequest))
#7 /var/www/html/martini-git/lib/http.php(88): RequestHandler->handleRequest(Object(HttpRequest))
#8 /var/www/html/martini-git/htdocs/index.php(159): HttpApplication->run()
#9 {main}