Node.js + mongoose [RangeError: Maximum call stack size exceeded]

I am new to Node.js and I'm facing an error :

RangeError: Maximum call stack size exceeded

I'm not able able to solve the problem because most of the stack problems in others stackoverflow questions about Node.js deals with hundreds of callback but I have only 3 here.

First a fetch (findById) then an update an later a save operation!

My code is :

app.post('/poker/tables/:id/join', function(req, res) {
    var id = req.params.id;

    models.Table.findById(id, function(err, table) {
        if (err) {
            console.log(err);
            res.send({
                message: 'error'
            });
            return;
        }

        if (table.players.length >= table.maxPlayers) {
            res.send({
                message: "error: Can't join ! the Table is full"
            });
            return;
        }
        console.log('Table isnt Full');

        var BuyIn = table.minBuyIn;
        if (req.user.money < table.maxPlayers) {
            res.send({
                message: "error: Can't join ! Tou have not enough money"
            });
            return;
        }
        console.log('User has enought money');

        models.User.update({
            _id: req.user._id
        }, {
            $inc: {
                money: -BuyIn
            }
        }, function(err, numAffected) {
            if (err) {
                console.log(err);
                res.send({
                    message: 'error: Cant update your account'
                });
                return;
            }
            console.log('User money updated');

            table.players.push({
                userId: req.user._id,
                username: req.user.username,
                chips: BuyIn,
                cards: {}
            });

            table.save(function(err) {
                if (err) {
                    console.log(err);
                    res.send({