My cousin excitedly called me to share the news that she won a holiday prize to the beautiful Zanzibar and promised to bring me a souvenir. Why does the word "excitedly" make the sentence meaningless?

The word "excitedly" does not necessarily make the sentence meaningless, but it may be unnecessary as the context of the sentence already conveys the cousin's excitement. Removing the word "excitedly" would make the sentence more concise without losing any important information.