Leaflet-markercluster default icons missing - icons

Question

Default icons not showing for MarkerCluster plugin after using IconCreateFunction.
I want to use the default icons for the plugin but when using attached code I loose all the icons functions, I only get the numbers with no icons and if I activate the "childCount" I get one type of circle with the numbers offcenter within the icon. The markers has already been clustered and I want to add this value to the markercluster that is why I'm using the IconCreateFuncton so the numbers on the map shows correctly but I have lost all the icons and its beautiful functions... what is missing?
Result below using "var childCount"
$.getJSON("../test/test.geojson", function(json) {
geoLayer = L.geoJson(json, {
pointToLayer: function(feature, latlng) {
var log_p = feature.properties.log_p;
var marker;
if (log_p > 0){
marker = new L.shapeMarker(latlng, {radius: log_p*25, fillColor: '#2b83ba', fillOpacity: 0.5, color: '#000000', weight: 1, shape: 'circle'});
}
else {
marker = null
}
return marker;
},
onEachFeature: function(feature, layer) {
var popupText = "Amount per day: " + '<b>' + feature.properties.total + '</b>';
layer.bindPopup(popupText, {
closeButton: true,
offset: L.point(0, -20)
});
layer.on('click', function() {
layer.openPopup();
});
},
});
var markers = new L.MarkerClusterGroup({
iconCreateFunction: function(cluster) {
var children = cluster.getAllChildMarkers();
var sum = 0;
for (var i = 0; i < children.length; i++) {
sum += children[i].feature.properties.total;
}
/*
var childCount = cluster.getAllChildMarkers();
var c = ' marker-cluster-';
if (childCount < 10) {
c += 'small';
} else if (childCount < 500) {
c += 'medium';
} else {
c += 'large';
}
*/
return new L.DivIcon({ html: '<b>' + sum + '</b>', className: 'marker-cluster'/* + c */, iconSize: new L.Point(40, 40) });
}
});
markers.addLayer(geoLayer)
map.addLayer(markers);
});
Markercluster icons, styles and functions are lost

Answer 1

I manage to solve the problem, a few lines of code was missing. I added them to the original JavaScript code as follows.
$.getJSON("../test/test.geojson", function(json) {
geoLayer = L.geoJson(json, {
pointToLayer: function(feature, latlng) {
var log_p = feature.properties.log_p;
var marker;
if (log_p > 0) {
marker = new L.shapeMarker(latlng, {
radius: log_p * 25,
fillColor: '#2b83ba',
fillOpacity: 0.5,
color: '#000000',
weight: 1,
shape: 'circle'
});
} else {
marker = null
}
return marker;
},
onEachFeature: function(feature, layer) {
var popupText = "Amount per day: " + '<b>' + feature.properties.total + '</b>';
layer.bindPopup(popupText, {
closeButton: true,
offset: L.point(0, -20)
});
layer.on('click', function() {
layer.openPopup();
});
},
});
var clusters = new L.MarkerClusterGroup({
maxClusterRadius: 125,
iconCreateFunction: function(cluster) {
var children = cluster.getAllChildMarkers();
var sum = 0;
for (var i = 0; i < children.length; i++) {
sum += children[i].feature.properties.total;
}
var childCount = cluster.getChildCount()
var c = ' marker-cluster-';
if (childCount + sum <= 50) {
c += 'small';
} else if (childCount + sum <= 250) {
c += 'medium';
} else {
c += 'large';
}
return new L.DivIcon({
html: '<div><span>' + sum + '</span></div>',
className: 'marker-cluster marker-cluster-' + c,
iconSize: new L.Point(40, 40)
});
},
});
clusters.addLayer(geoLayer)
map.addLayer(clusters);
});