NullPointerException probleme insert sqlite database?

i don't know what is the problem went i try to insert on sqlite database

01-28 14:00:36.841: E/AndroidRuntime(1505): FATAL EXCEPTION: main 01-28 14:00:36.841: E/AndroidRuntime(1505): java.lang.NullPointerException 01-28 14:00:36.841: E/AndroidRuntime(1505): at com.smartfridge.fragment.AddStockageFragment.onClick(AddStockageFragment.java:209).....

this is my StockageDAO

public class StockageDAO {

public static final String TAG = "StockageDAO";

private Context mContext;

// Database fields
private SQLiteDatabase mDatabase;
private DataBaseHelper mDbHelper;
private String[] mAllColumns = { 
        DataBaseHelper.ID_STOCKAGE,
        DataBaseHelper.QTE_STOCKAGE,
        DataBaseHelper.EXP_DATE_STOCKAGE, 
        DataBaseHelper.SEUIL_STOCKAGE, 
        DataBaseHelper.LOCALISATION_STOCKAGE, 
        DataBaseHelper.PRODUIT_IDForing_CAT_STOCKAGE };



public StockageDAO(Context context) {
    mDbHelper = new DataBaseHelper(context);
    this.mContext = context;
    // open the database
    try {
        open();
    }
    catch(SQLException e) {
        Log.e(TAG, "SQLException on openning database " + e.getMessage());
        e.printStackTrace();
    }
}

public void open() throws SQLException {
    mDatabase = mDbHelper.getWritableDatabase();
}

public void close() {
    mDbHelper.close();
}

private static final SimpleDateFormat formatter = new SimpleDateFormat(
        "yyyy-MM-dd", Locale.ENGLISH);


public Stockage createStockage(double qte_stockage,  String exp_date_stockage, double seul_stockage, int localisation_stockage, int ForingIdStock) {
    ContentValues values = new ContentValues();


    values.put(DataBaseHelper.QTE_STOCKAGE, qte_stockage);
    values.put(DataBaseHelper.EXP_DATE_STOCKAGE, exp_date_stockage);
    values.put(DataBaseHelper.SEUIL_STOCKAGE, seul_stockage);
    values.put(DataBaseHelper.LOCALISATION_STOCKAGE, localisation_stockage);
    values.put(DataBaseHelper.PRODUIT_IDForing_CAT_STOCKAGE, ForingIdStock);




        long insertId = (int) mDatabase.insert(DataBaseHelper.STOCKAGE_TABLE, null, values);
        Cursor cursor = mDatabase.query(DataBaseHelper.STOCKAGE_TABLE,
                mAllColumns, DataBaseHelper.ID_STOCKAGE + " = " + insertId, null, null, null, null);
        cursor.moveToFirst();
        Stockage newStockage = cursorToStockage(cursor);
        cursor.close();
        return newStockage;


}




public void deleteStockage(Stockage stockage) {
    int id = stockage.getIdStock();
    System.out.println("the deleted employee has the id: " + id);
    mDatabase.delete(DataBaseHelper.STOCKAGE_TABLE, DataBaseHelper.ID_STOCKAGE + " = " + id, null);
}

public List<Stockage> getAllStockages() {
    List<Stockage> listStockages = new ArrayList<Stockage>();

    Cursor cursor = mDatabase.query(DataBaseHelper.STOCKAGE_TABLE,
            mAllColumns, null, null, null, null, null);

    cursor.moveToFirst();
    while (!cursor.isAfterLast()) {
        Stockage stockage = cursorToStockage(cursor);
        listStockages.add(stockage);
        cursor.moveToNext();
    }
    // make sure to close the cursor
    cursor.close();
    return listStockages;
}

public List<Stockage> getStockagesByProduit(int ForingIdStock) {
    List<Stockage> listStockages = new ArrayList<Stockage>();

    Cursor cursor = mDatabase.query(DataBaseHelper.STOCKAGE_TABLE, mAllColumns
            , DataBaseHelper.PRODUIT_IDForing_CAT_STOCKAGE + " = ?",
            new String[] { String.valueOf(ForingIdStock) }, null, null, null);

    cursor.moveToFirst();
    while (!cursor.isAfterLast()) {
        Stockage stockage = cursorToStockage(cursor);
        listStockages.add(stockage);
        cursor.moveToNext();
    }
    // make sure to close the cursor
    cursor.close();
    return listStockages;
}

public List<IngredientStockage> getStockagesByProduitBetween(int ForingId) {
    List<IngredientStockage> listIngredientStockages = new ArrayList<IngredientStockage>();
    Cursor cursor = mDatabase.rawQuery("SELECT "+DataBaseHelper.STOCKAGE_TABLE+"."




            +DataBaseHelper.ID_STOCKAGE+", "+DataBaseHelper.PRODUIT_TABLE+"."
            //+DataBaseHelper.ID_PRODUIT+", "+DataBaseHelper.PRODUIT_TABLE+"." 

            +DataBaseHelper.NAME_PRODUIT+", "+DataBaseHelper.PRODUIT_TABLE+"."
            +DataBaseHelper.TYPE_PRODUIT+", "+DataBaseHelper.STOCKAGE_TABLE+"." 
            +DataBaseHelper.QTE_STOCKAGE+", "+DataBaseHelper.STOCKAGE_TABLE+"."
            +DataBaseHelper.SEUIL_STOCKAGE+", "+DataBaseHelper.STOCKAGE_TABLE+"." 
            +DataBaseHelper.EXP_DATE_STOCKAGE+", "+DataBaseHelper.STOCKAGE_TABLE+"." 
            +DataBaseHelper.LOCALISATION_STOCKAGE+", "+DataBaseHelper.STOCKAGE_TABLE+"."
            //+DataBaseHelper.PRODUIT_IDForing_CAT_STOCKAGE+", "
            +DataBaseHelper.PRODUIT_IDForing_CAT_STOCKAGE+


            " FROM "+ DataBaseHelper.STOCKAGE_TABLE + "," + DataBaseHelper.PRODUIT_TABLE + "  where " + DataBaseHelper.STOCKAGE_TABLE + ".ForingIDProd = " + DataBaseHelper.PRODUIT_TABLE + ".idProd " +  " and  ForingIdCat = " + ForingId,new String [] {} );

    cursor.moveToFirst();
    while (!cursor.isAfterLast()) {
        IngredientStockage ingredientstockage = cursorToIngredientStockage(cursor);
        listIngredientStockages.add(ingredientstockage);
        cursor.moveToNext();
    }
    // make sure to close the cursor
    cursor.close();
    return listIngredientStockages;
}
////////////////////





@SuppressLint("SimpleDateFormat") 
public List<IngredientStockage> getStockagesByProduitBetweenshoping() {
    List<IngredientStockage> listIngredientStockages = new ArrayList<IngredientStockage>();

    Calendar c = Calendar.getInstance();

    SimpleDateFormat df1 = new SimpleDateFormat("dd/MM/yyyy");
    String formattedDate1 = df1.format(c.getTime());

    Cursor cursor = mDatabase.rawQuery("SELECT "+DataBaseHelper.STOCKAGE_TABLE+"."

            +DataBaseHelper.ID_STOCKAGE+", "+DataBaseHelper.PRODUIT_TABLE+"."
            +DataBaseHelper.NAME_PRODUIT+", "+DataBaseHelper.PRODUIT_TABLE+"."
            +DataBaseHelper.TYPE_PRODUIT+", "+DataBaseHelper.STOCKAGE_TABLE+"." 
            +DataBaseHelper.QTE_STOCKAGE+", "+DataBaseHelper.STOCKAGE_TABLE+"."
            +DataBaseHelper.SEUIL_STOCKAGE+", "+DataBaseHelper.STOCKAGE_TABLE+"." 
            +DataBaseHelper.EXP_DATE_STOCKAGE+", "+DataBaseHelper.STOCKAGE_TABLE+"." 
            +DataBaseHelper.LOCALISATION_STOCKAGE+", "+DataBaseHelper.STOCKAGE_TABLE+"."
            //+DataBaseHelper.PRODUIT_IDForing_CAT_STOCKAGE+", "
            +DataBaseHelper.PRODUIT_IDForing_CAT_STOCKAGE+


            " FROM "+ DataBaseHelper.STOCKAGE_TABLE + "," + DataBaseHelper.PRODUIT_TABLE + "  where (" + DataBaseHelper.STOCKAGE_TABLE + ".ForingIDProd = " + DataBaseHelper.PRODUIT_TABLE + ".idProd) and ( ( "+DataBaseHelper.STOCKAGE_TABLE+"." +DataBaseHelper.QTE_STOCKAGE+" <= "+DataBaseHelper.STOCKAGE_TABLE+"."    +DataBaseHelper.SEUIL_STOCKAGE+") || ("+DataBaseHelper.STOCKAGE_TABLE+"." +DataBaseHelper.EXP_DATE_STOCKAGE+" <= "+formattedDate1+")"+")"  ,new String [] {} );

    cursor.moveToFirst();
    while (!cursor.isAfterLast()) {
        IngredientStockage ingredientstockage = cursorToIngredientStockage(cursor);
        listIngredientStockages.add(ingredientstockage);
        cursor.moveToNext();
    }
    // make sure to close the cursor
    cursor.close();
    return listIngredientStockages;
}


public List<Produit> getProduitsOfStockage(int ForingIdprod) {
    List<Produit> listProduits = new ArrayList<Produit>();

    Cursor cursor = mDatabase.query(DataBaseHelper.PRODUIT_TABLE, mAllColumns
            , DataBaseHelper.PRODUIT_IDForing_CAT_STOCKAGE + " = ?",
            new String[] { String.valueOf(ForingIdprod) }, null, null, null);

    cursor.moveToFirst();
    while (!cursor.isAfterLast()) {
        Produit produit = cursorToProduit(cursor);
        listProduits.add(produit);
        cursor.moveToNext();
    }
    // make sure to close the cursor
    cursor.close();
    return listProduits;
}

private Produit cursorToProduit(Cursor cursor) {
    Produit produit = new Produit();
    produit.setIdProd(cursor.getInt(0));
    produit.setNameProd(cursor.getString(1));
    produit.setTypeProd(cursor.getString(2));

    // get The company by id
    int ForingIdCat = cursor.getInt(3);
    CategorieDAO dao = new CategorieDAO(mContext);
    Categorie categorie = dao.getCategorieById(ForingIdCat);
    if(categorie != null)
        produit.setCategorie(categorie);

    return produit;
}

protected IngredientStockage cursorToIngredientStockage(Cursor cursor) {
    IngredientStockage is = new IngredientStockage();
    is.setId(cursor.getInt(0));
    is.setNameIS(cursor.getString(1));
    is.setTypeIS(cursor.getString(2));
    is.setQteIS(cursor.getDouble(3));
    is.setEXP_DateIS(cursor.getString(5));

    is.setSeuilIS(cursor.getDouble(4));
    is.setLocalisationIS(cursor.getInt(6));



    // get The produit by id
            int ForingIdprod = cursor.getInt(7);
            ProduitDAO dao = new ProduitDAO(mContext);
            Produit produit = dao.getProduitByForingId(ForingIdprod);
            if(produit != null)
                is.setProduit(produit);


    return is;
}

protected Stockage cursorToStockage(Cursor cursor) {
    Stockage stockage = new Stockage();
    stockage.setIdStock(cursor.getInt(0));
    stockage.setQteStock(cursor.getDouble(1));
    stockage.setEXP_DateStock(cursor.getString(2));
    stockage.setSeuilStock(cursor.getDouble(3));
    stockage.setLocalisation(cursor.getInt(4));

    // get The produit by id
            int ForingIdprod = cursor.getInt(5);
            ProduitDAO dao = new ProduitDAO(mContext);
            Produit produit = dao.getProduitByForingId(ForingIdprod);
            if(produit != null)
                stockage.setProduit(produit);


    return stockage;
}

}

and i call the methode in the fragment AddStockageFragment

as that :

Stockage createdStockage = mStockageDao.createStockage(stockqte,datestock,seulstock,LocalStock,1);

this is stockage entitie :

private int idStock; 
private double QteStock;
private String EXP_DateStock;
private double SeuilStock;
private int Localisation;
private Produit produit; // rekation with table product

this for helpe :)