I'm so embarrassed, I broke an expensive statue at my Airbnb
Oh no! How did it happen?
It was a momentary clumsiness, I hope they would understand it.
I'm sure they'll forgive you. I can't say for certain that they won't potentially bill you for the item, though.
Don't they have to give me a 24-hour notice?
If it was an honest mistake and no other damage happened, just explain the situation to the home owner and they'll likely be understanding. But, as you should always respect other peoples properties, it could lead to fees. The owner isn't obligated to give you any notice.