Is this pavlova/meringue ok for tonight?

I've just made a meringue for a pavlova, I was just spooning the cream into the well in the centre and it sort of collapsed. It's a bit hollow, I slid my finger in to see what it's like and it sort of like a mallow inside or marshmallow, is it ok to eat. This hasn't happened before when I've made it. I've got people coming...help