diff --git a/OsmAnd/src/net/osmand/plus/activities/MainMenuActivity.java b/OsmAnd/src/net/osmand/plus/activities/MainMenuActivity.java
index 300d60e521..ad1e1fac35 100644
--- a/OsmAnd/src/net/osmand/plus/activities/MainMenuActivity.java
+++ b/OsmAnd/src/net/osmand/plus/activities/MainMenuActivity.java
@@ -138,7 +138,7 @@ public class MainMenuActivity extends BaseDownloadActivity implements OsmAndLoca
 				@Override
 				public void onScrollChanged() {
 					int scrollY = mainScroll.getScrollY();
-					if (previousScroll == scrollY){
+					if (previousScroll == scrollY || mainScroll.getChildAt(0) == null){
 						return;
 					}
 
diff --git a/OsmAnd/src/net/osmand/plus/dashboard/DashDownloadMapsFragment.java b/OsmAnd/src/net/osmand/plus/dashboard/DashDownloadMapsFragment.java
index 0bf757ac74..30b5a35146 100644
--- a/OsmAnd/src/net/osmand/plus/dashboard/DashDownloadMapsFragment.java
+++ b/OsmAnd/src/net/osmand/plus/dashboard/DashDownloadMapsFragment.java
@@ -84,6 +84,9 @@ public class DashDownloadMapsFragment extends DashBaseFragment {
 			}
 
 			protected void updateCount(String s) {
+				if (DashDownloadMapsFragment.this.isDetached()){
+					return;
+				}
 				File ms = getMyApplication().getAppPath(s);
 				if (ms.exists()) {
 					File[] lf = ms.listFiles();
@@ -101,6 +104,9 @@ public class DashDownloadMapsFragment extends DashBaseFragment {
 			@Override
 			protected void onPostExecute(Void result) {
 				super.onPostExecute(result);
+				if (DashDownloadMapsFragment.this.isDetached()){
+					return;
+				}
 				if(countMaps > 0) {
 					long mb = 1 << 20;
 					long gb = 1 << 30;