Hi Jan!
I'm sorry to hear about your situation.
We all worry about losing superhost. Why would you lose it? Because you don't have enough bookings or reviews? Or did you cancel a reservation?
Maybe these things can help:
1) I have come across many people saying that it didn't really matter to their bookings whether they were superhost or not. No decrease in booking due to losing superhost.
2) There are many other ways you can increase your bookings. I had a look at your listing. Your apartments look lovely ! And you are set up for short stays and last minute bookings that's great! But
Your photos are dark and even many taken at night. Professional, bright photos are imperative to getting bookings, even more important than being superhost. This is even more important, as we face more and more competition. I myself have a hard time booking a place that shows photos taken at night.
Other tips are frequently updating your listing, so they know you are on top of it and present. And using the "beta" suggestions and price suggestions Airbnb propose (not all the time but at least try them sometimes). And of course super rapid response time to inquiries I suppose you already do this.
Good luck!