Error :: SQLiteOpenHelper getDatabaseLocked(SQLiteOpenHelper.java:224) about framework HOT 8 CLOSED

           @Override
           public View onCreateView(LayoutInflater inflater, ViewGroup container,
                           Bundle savedInstanceState) {
                      scope = new AppScope(getActivity());
                      ...................................
                   init();
                   return mIsView;
           }

           private void init() {
           ..............................................
              mShipmentLoader = new ShipmentLoader();
              mShipmentLoader.execute();
           ..............................................
      }

      private void checkStatus() {
          if (db().isEmptyTable()) {
                      scope.main().requestSync(IncomingShipmentProviders.AUTHORITY);
          }
      }

      class ShipmentLoader extends AsyncTask<Void, Void, Void> {

              @Override
              protected Void doInBackground(Void... params) {
                  db().getOEInstance().syncWithServer(); 

                  mIncomingShipmentObjects.clear();
                  OEUser user = OEUser.current(getActivity());
                  Integer uid = user.getUser_id();
                  mIncomingShipmentObjects.addAll(db().select("type = ? and state = ? and assignee_id = ?",
                                                          new String[] {"in","assigned",uid.toString()}));
                  db().close();
                  return null;
              }

              @Override
              protected void onPostExecute(Void result) {
                      mISListAdapter.notifiyDataChange(mIncomingShipmentObjects);
                      checkStatus();
              }
      }

    @Override
    public Object databaseHelper(Context context) {
        Log.d("Context", "context -- IncomingShipment -> databaseHelper -> " + context);
        if (context != null){
            mContextIS = context;
            Log.d("Context", "context -- IncomingShipment -> databaseHelper -> mContextIS = context " + context);
        } else {
            mContextIS = getActivity().getApplicationContext();
            Log.d("Context", "context -- IncomingShipment -> databaseHelper -> mContextIS = getactivity() " + mContextIS);
        }
        mContextIS = context;
            return new StockPickingDB(mContextIS);
    }

    SyncFinishReceiver mSyncFinishIs = new SyncFinishReceiver() {
            public void onReceive(Context context, android.content.Intent intent) {
                 mShipmentLoader = new ShipmentLoader();
                 mShipmentLoader.execute();
            };
    };

scope.main().runOnUiThread(new Runnable() {
    @Override
    public void run() {
        if (db().isEmptyTable()) {
            db().getOEInstance().syncWithServer(); 
        }

        mIncomingShipmentObjects.clear();
        OEUser user = OEUser.current(getActivity());
        Integer uid = user.getUser_id();
        mIncomingShipmentObjects.addAll(db().select("type = ? and state = ? and assignee_id = ?",
                                                          new String[] {"in","assigned",uid.toString()}));
    }
});
return null;

    @Override
    public Object databaseHelper(Context context) {
//        Log.d("Context", "context -- IncomingShipment -> databaseHelper -> " + context);
        if (context != null){
            mContextIS = context;
//            Log.d("Context", "context -- IncomingShipment -> databaseHelper -> mContextIS = context " + context);
        } else {
            mContextIS = getActivity().getApplicationContext();
//            Log.d("Context", "context -- IncomingShipment -> databaseHelper -> mContextIS = getactivity() " + mContextIS);
        }
        mContextIS = context;
            return new StockPickingDB(mContextIS);
    }

public class StockPickingDB extends OEDatabase {

        Context mContextSP = null;
        public StockPickingDB(Context context) {
                super(context);
//                Log.d("Context", "context -- StockPickingDB -> StockPickingDB -> " + context);
                mContextSP = context;
        }

        @Override
        public String getModelName() {
                return "stock.picking";
        }

        @Override
        public List<OEColumn> getModelColumns() {
//            Log.d("Context", "context mContextSP -- StockPickingDB -> getModelColumns -> " + mContextSP);
                List<OEColumn> cols = new ArrayList<OEColumn>();
                cols.add(new OEColumn("name", "name", OEFields.varchar(64)));
                cols.add(new OEColumn("date", "date", OEFields.datetime("dd/MM/yyyy HH:mm:ss")));
                cols.add(new OEColumn("partner_id", "Customer", OEFields.manyToOne(new ResPartnerDB(mContextSP))));
                cols.add(new OEColumn("assignee_id","assignee_id", OEFields.manyToOne(new ResUserDB(mContextSP))));
                cols.add(new OEColumn("move_lines","move_lines", OEFields.oneToMany(new StockMoveDB(mContextSP),"picking_id")));
                cols.add(new OEColumn("type", "type", OEFields.varchar(64)));
                cols.add(new OEColumn("state", "state", OEFields.varchar(64)));
                cols.add(new OEColumn("signature", "signature", OEFields.blob()));
                return cols;
        }
}

@Override
public Object databaseHelper(Context context) {
    return new StockPickingDB(context);
}

mContextIS = (Context) getActivity();