public int getBalance(Player player){
        try {
            PreparedStatement q = connection.prepareStatement("SELECT coins FROM joueurs WHERE uuid = ?");
            q.setString(1, player.getUniqueId().toString());

            int balance = 0;
            ResultSet rs = q.executeQuery();

            while(rs.next()){
                balance = rs.getInt("coins");
            }

            q.close();

            return balance;

        } catch (SQLException e) {
            e.printStackTrace();
        }

        return 0;
    }