diff --git a/app/src/main/java/cy/agorise/crystalwallet/activities/BoardActivity.java b/app/src/main/java/cy/agorise/crystalwallet/activities/BoardActivity.java
index ee43bca..4a8a2de 100644
--- a/app/src/main/java/cy/agorise/crystalwallet/activities/BoardActivity.java
+++ b/app/src/main/java/cy/agorise/crystalwallet/activities/BoardActivity.java
@@ -284,8 +284,10 @@ public class BoardActivity  extends CustomActivity {
         super.onDestroy();
 
         //Release the media player
-        mediaPlayer.release();
-        mediaPlayer = null;
+        if(mediaPlayer!=null){
+            mediaPlayer.release();
+            mediaPlayer = null;
+        }
     }
 
     public void loadUserImage(){
diff --git a/app/src/main/java/cy/agorise/crystalwallet/activities/IntroActivity.java b/app/src/main/java/cy/agorise/crystalwallet/activities/IntroActivity.java
index 17ec920..1d2d91f 100644
--- a/app/src/main/java/cy/agorise/crystalwallet/activities/IntroActivity.java
+++ b/app/src/main/java/cy/agorise/crystalwallet/activities/IntroActivity.java
@@ -161,8 +161,10 @@ public class IntroActivity extends CustomActivity {
         super.onDestroy();
 
         //Release the media player
-        mediaPlayer.release();
-        mediaPlayer = null;
+        if(mediaPlayer!=null){
+            mediaPlayer.release();
+            mediaPlayer = null;
+        }
     }
 
     @OnClick(R.id.btnImportAccount)