twust

I’ve found a fix, it works.

At the beginning of basic-google-maps-placemarks/functions.js, I’ve added this:

// on page without map, bgmpData is not initialised and causes javascript errors that stop all further scripts
// so initialisation prevents js error, and the rest can be executed

var bgmpData = bgmpData || {options:{zoom:0.0, latitude:0.0, longitude:0, clustering: {maxZoom:0, gridSize:0}}};

Hope this helps.