@Christine93 although some may think i am not human, i will try my best to answer this 🙂
The airbnb calendar has bugs. I have seen this on my own places thinking WTF has happened here.
I suggest temporarily turning the listing off to be sure.
Go to your calendar, then in the bottom left corner either select `snooze` (for a certain period) or `unlist`, you can simply re-list your place again when you are ready to go. This means you do not need to go through and manually block everything, you can keep your calendar as is and just de-list.
If that helped, hit the thumbs up.