diff --git a/app.js b/app.js
index afaa3b4..dfb3d5f 100644
--- a/app.js
+++ b/app.js
@@ -13,6 +13,7 @@ const __dirname = path.dirname(__filename);
 
 import indexRouter from './routes/index.js'
 import apiRouter from './routes/api.js'
+import chartRouter from './routes/api.js'
 
 // import getdataRouter from './routes/getdata.js'
 // import putdataRouter from './routes/putdata.js'
@@ -29,7 +30,7 @@ app.use(express.static(path.join(__dirname, 'public')));
 
 app.use('/api', apiRouter)
 app.use('/', indexRouter);
-// app.use('/users', usersRouter);
+app.use('/chart', chartRouter);
 
 // catch 404 and forward to error handler
 app.use(function(req, res, next) {
diff --git a/public/javascripts/chart_live.js b/public/javascripts/chart_live.js
index 74c2611..bb1dcc8 100644
--- a/public/javascripts/chart_live.js
+++ b/public/javascripts/chart_live.js
@@ -22,7 +22,7 @@ const PlotDayLive_Noise = async (sid) => {
     let aktVal = {}
 
     // read the data from the server
-    const url = `/api/getsensordata?&sensorid=${sid}`
+    const url = `/chart/getsensordata?&sensorid=${sid}`
     let ret = await fetch(url)
         .catch(e => {
             logerror(e)
@@ -62,10 +62,10 @@ const PlotDayLive_Noise = async (sid) => {
                 '</tr></table>' +
                 '</div>'
         }
-        let txtMeldung = false
     } else {
         utils.showError(data.err)
     }
+    let txtMeldung = false
 
 
     // Plot-Options
diff --git a/public/javascripts/map.js b/public/javascripts/map.js
index f8cbab9..8270b1a 100644
--- a/public/javascripts/map.js
+++ b/public/javascripts/map.js
@@ -2,6 +2,7 @@
 
 import * as dt from './datetime.js'
 import * as chart_live from "./chart_live.js";
+import * as utils from "./chart_utilities.js";
 
 let map = null
 let bounds
@@ -154,52 +155,57 @@ export async function buildMarkers() {
         west: bounds.getWest(), south: bounds.getSouth(),
         east: bounds.getEast(), north: bounds.getNorth()
     }
-    const url = `/api/getmapdata?type=noise&box=${bounds.toBBoxString()}`
+    const url = `/chart/getmapdata?type=noise&box=${bounds.toBBoxString()}`
 
     let ret = await fetch(url)
         .catch(e => {
             console.log(e)
         });
     let sensors = await ret.json()
-    let markers = L.markerClusterGroup({
-        spiderfyOnMaxZoom: true,
-        showCoverageOnHover: false,
-        zoomToBoundsOnClick: true,
-        // disableClusteringAtZoom: 14,
-        iconCreateFunction: function (cluster) {
-            let mymarkers = cluster.getAllChildMarkers();
-            let color = getMedian(mymarkers);
-            return new L.Icon({
-                iconUrl: buildIcon(color, cluster.getChildCount(), 0),
-                iconSize: [35, 35]
-            });
-        },
-    });
+    if (!sensors.err) {
+        let markers = L.markerClusterGroup({
+            spiderfyOnMaxZoom: true,
+            showCoverageOnHover: false,
+            zoomToBoundsOnClick: true,
+            // disableClusteringAtZoom: 14,
+            iconCreateFunction: function (cluster) {
+                let mymarkers = cluster.getAllChildMarkers();
+                let color = getMedian(mymarkers);
+                return new L.Icon({
+                    iconUrl: buildIcon(color, cluster.getChildCount(), 0),
+                    iconSize: [35, 35]
+                });
+            },
+        });
 
-    for (let x of sensors.values) {
-        if (x.value <= -4) {
-            continue
+        for (let x of sensors.values) {
+            if (x.value <= -4) {
+                continue
+            }
+            let marker = L.marker([x.location[1], x.location[0]], {
+                icon: new L.Icon({
+                    iconUrl: buildIcon(getColor(parseInt(x.value)), 0, x.indoor),
+                    iconSize: [35, 35],
+                }),
+                name: x.id,
+                value: x.value,
+                url: '/graph?sid=' + x.id,
+                lastseen: dt.formatISODate(x.lastseen),
+                indoor: x.indoor
+            })
+                .on('click', e => onMarkerClick(e, true))        // define click- and
+                .bindPopup(popuptext);                      // and bint the popup text
+            markers.addLayer(marker);
         }
-        let marker = L.marker([x.location[1], x.location[0]], {
-            icon: new L.Icon({
-                iconUrl: buildIcon(getColor(parseInt(x.value)),0,x.indoor),
-                iconSize: [35, 35],
-            }),
-            name: x.id,
-            value: x.value,
-            url: '/graph?sid=' + x.id,
-            lastseen: dt.formatISODate(x.lastseen),
-            indoor: x.indoor
-        })
-            .on('click', e => onMarkerClick(e, true))        // define click- and
-            .bindPopup(popuptext);                      // and bint the popup text
-        markers.addLayer(marker);
+        map.addLayer(markers);
+        return sensors.lastdate
+    } else {
+        utils.showError(sensors.err)
     }
-    map.addLayer(markers);
-    return sensors.lastdate
 }
 
-async function onMarkerClick(e, click) {
+
+    async function onMarkerClick(e, click) {
     let item = e.target.options;
     clickedSensor = item.name;
 
@@ -274,7 +280,7 @@ async function showLastDate(ld) {
     //     console.log(e)
     // }
     // fetch all sensors
-    const url = `/api/getmapdata?type=noise`
+    const url = `/chart/getmapdata?type=noise`
     let ret = await fetch(url)
         .catch(e => {
             console.log(e)
diff --git a/views/index.pug b/views/index.pug
index 751cba8..16a3696 100644
--- a/views/index.pug
+++ b/views/index.pug
@@ -27,7 +27,7 @@ block content
 
     .tab-content#thetabs
       .tab-pane.fade.show.active#t_map(role="tabpanel" aria-labelledby="map-tab")
-        #map  MapTAB
+        #map
         #mapdateactsens
           #actsensors
           #mapdate
@@ -41,7 +41,7 @@ block content
       .tab-pane.fade#t_daynight(role="tabpanel" aria-labelledby="map-tab")
         #ddaynight  DayNightTAB
       .tab-pane.fade#t_lden(role="tabpanel" aria-labelledby="map-tab")
-        #dlden  LdenTAB
+        #dlden
 
 
   // Error-Dialog