Don’t know for sure, but it seems that they just preempted her show for tonight only. I expect she will be back next week.
She just happens to be “pre-empted” for the week.
Just like they “happened” to announce Biden won the race during the Guiliani news conference today.
It’s all happenstance. It just “happens”.
To quote someone in a movie once, “The only reason why these things happen is because this whole country is filled with people, that when these things happen they just say “these things happen,” and that’s why they happen!”