What happens if you drop and break a plate of fruit from the Buddha's altar? What happens if you drop and break a plate of fruit from the Buddha's altar?
Is it bad karma? Well, karma is about intention. If you did not intentionally drop and break the plate of fruit, then there is no consequence for you, from the perspective of karma.

Is it a bad omen? Definitely not. The Buddha did not teach his followers to believe in omens. In fact, we should not cling to unskillful thoughts like superstitious belief in omens.

How should I interpret the incident? All conditioned things are impermanent (sabbe sankhara anicca). Everything that arises, must eventually cease. That applies to the plate of fruit too. If you leave the fruit where it is, in due time it will rot and dry up, even without your intervention.

What should I do? It would be skillful, virtuous and thoughtful of you to clean up any mess that you created, even if done accidentally.

What should I not do? You should not carry remorse or regret for breaking the plate. It's unskillful to cling to remorse. Instead, you should resolve to be more careful next time - that's skillful. You should also not deceive others into thinking that you did not break the plate, as lying is against one of the five precepts.