If your listing has been snoozed by Air BNB, @Maria924, it appears you have to wait for the listings to be activated. I did notice that you reached out to the host forum a few month ago because of your calendar problem and were directed to contact Air BNB to have the erroneous booking cancelled. Perhaps you did not do that, but if Air BNB error to allow an Instant Booking when the calendar is blocked, then the cancellation would not be counted against you.
I never cancel without Air BNB assistance because it is usually some system error and not mine.