After medical studies performed, Bjork's specialist doctor advised her immediate rest of her voice due to an inflamed nodule. Following Björk having to cancel two shows in Argentina when this condition emerged, it is on doctors advice, too soon to try and sing again, as this could bring a permanent damage to her voice. Even though Björk wants to perform, she won't be able to continue with the show.
We wish Björk a quick and full recovery to continue enjoying her talent soon.