Fix crash on autoplay

Author: gcandrade10

app/src/main/java/org/schabi/newpipe/player/Player.java

@@ -467,10 +467,12 @@ public void handleIntent(@NonNull final Intent intent) {
         }
 
         UIs.call(PlayerUi::setupAfterIntent);
-        NavigationHelper.sendPlayerStartedEvent(context,
-                playQueue.getItem().getTitle(),
-                playQueue.getItem().getUploader()
-                );
+        if (playQueue != null) {
+            NavigationHelper.sendPlayerStartedEvent(context,
+                    playQueue.getItem().getTitle(),
+                    playQueue.getItem().getUploader()
+            );
+        }
     }
 
     private void initUIsForCurrentPlayerType() {