Don't worry - this is totally normal for the pavlova to crack a little as it's such a delicate dessert. The whipped cream will solve that problem and cover up any cracks! If the cracks can't be covered up, then turn it into an Eton Mess. Break up the meringue, divide it into individual glasses, and top it with the cream, mango, and passion fruit then repeat the layers. The flavour is identical, and you've made perfect individual portions! Check out my Strawberry Eton Mess for inspiration.