Hi @Joy299. Holly is a real Karen - did you see the review she left for a previous host? She's like the mother-in-law in a 50s sitcom who comes to visit and runs a gloved finger over everything.
If you have other bookings coming up, their reviews will quickly sweep Holly's aside, and your average will come up. Airbnb automatically sends those messages when a rating dips below a certain number. In the meantime try to overcome the island problems as best you can. See if you can get someone in soon to take care of the old carpet. There are many posts around here about low-rated properties coming up in the top 10 in search and being booked all the time. Airbnb isn't going to shut you down and it's disappointing to have such a guest but you'll bounce back.