diff --git a/CampusAppWP8/CampusAppWP8/Pages/Campusmap/CampusMapPage.xaml.cs b/CampusAppWP8/CampusAppWP8/Pages/Campusmap/CampusMapPage.xaml.cs
index 6733b1b8..ddc82665 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/Campusmap/CampusMapPage.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/Pages/Campusmap/CampusMapPage.xaml.cs
@@ -32,8 +32,7 @@ namespace CampusAppWP8.Pages.Campusmap
         public CampusMapPage()
         {
             this.InitializeComponent();
-            
-
+            this.map = new CBMainMapModel();
             this.MapCanvas.DataContext = this.map;
         }
 
diff --git a/CampusAppWP8/CampusAppWP8/Pages/Dev/NFC.xaml b/CampusAppWP8/CampusAppWP8/Pages/Dev/NFC.xaml
index f4a6505a..9f7e46cd 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/Dev/NFC.xaml
+++ b/CampusAppWP8/CampusAppWP8/Pages/Dev/NFC.xaml
@@ -24,17 +24,17 @@
         <StackPanel Grid.Row="0" Margin="12,17,0,28">
             <TextBlock Text="Campusapp" Style="{StaticResource PhoneTextNormalStyle}"/>
             <TextBlock Text="NFC" Margin="9,-7,0,0" Style="{StaticResource PhoneTextTitle1Style}"/>
-        </StackPanel>ed
+        </StackPanel>
 
         <!--ContentPanel - zusätzliche Inhalte hier platzieren-->
         <Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
             <StackPanel>
                 <TextBlock Name="Writecontent" Height="500"/>
                 <StackPanel Orientation="Horizontal">
-                <Button Content="Write" Name="Write" HorizontalAlignment="Left"  VerticalAlignment="Top" Click="Write_Click"/>
+                    <Button Content="Write" Name="Write" HorizontalAlignment="Left"  VerticalAlignment="Top" Click="Write_Click"/>
                     <Button Content="Prev" Name="Prev" HorizontalAlignment="Left"  VerticalAlignment="Top" Click="Prev_Click"/>
-                <Button Content="Next" Name="Next" HorizontalAlignment="Left"  VerticalAlignment="Top" Click="Next_Click"/>
-                <Button Content="Read" Name="Read" HorizontalAlignment="Left" VerticalAlignment="Top" Click="Read_Click"/>
+                    <Button Content="Next" Name="Next" HorizontalAlignment="Left"  VerticalAlignment="Top" Click="Next_Click"/>
+                    <Button Content="Read" Name="Read" HorizontalAlignment="Left" VerticalAlignment="Top" Click="Read_Click"/>
                 </StackPanel>
             </StackPanel>
 
diff --git a/CampusAppWP8/CampusAppWP8/Utility/Utilities.cs b/CampusAppWP8/CampusAppWP8/Utility/Utilities.cs
index 3f855f1b..f138e4e6 100644
--- a/CampusAppWP8/CampusAppWP8/Utility/Utilities.cs
+++ b/CampusAppWP8/CampusAppWP8/Utility/Utilities.cs
@@ -246,9 +246,16 @@ namespace CampusAppWP8.Utility
                 string lat = geoposition.Location.Latitude.ToString(CultureInfo.InvariantCulture);
                 string log = geoposition.Location.Longitude.ToString(CultureInfo.InvariantCulture);
                 string time = geoposition.Timestamp.Ticks.ToString();
-                App.SaveToAppState<string>(Constants.GeoWatch_CurrentPosition_Lat, lat);
-                App.SaveToAppState<string>(Constants.GeoWatch_CurrentPosition_Long, log);
-                App.SaveToAppState<string>(Constants.GeoWatch_CurrentPosition_Time, time);
+                try
+                {
+                    App.SaveToAppState<string>(Constants.GeoWatch_CurrentPosition_Lat, lat);
+                    App.SaveToAppState<string>(Constants.GeoWatch_CurrentPosition_Long, log);
+                    App.SaveToAppState<string>(Constants.GeoWatch_CurrentPosition_Time, time);
+                }
+                catch (Exception ex)
+                {
+                    Logger.LogException(ex);
+                }
             }
         }