Fixed NPE in bookmarks fragment... ugh

app/src/main/java/acr/browser/lightning/fragment/BookmarksFragment.java

@@ -141,8 +141,10 @@ public class BookmarksFragment extends Fragment implements View.OnClickListener,
     @Override
     public void onResume() {
         super.onResume();
+        if (mBookmarkAdapter != null) {
             setBookmarkDataSet(mBookmarkManager.getBookmarksFromFolder(null, true), false);
         }
+    }
 
     @Nullable
     @Override