If you get the "Your machine has new apple silicon processor which is currently not supported by bluestacks." error message while trying to use BlueStacks, this means that you are trying to run the app on an M1 or M2 Mac, for which BlueStacks is currently not supported. The developer team behind BlueStacks has stated that they are working towards resolving this compatibility issue, but there's no specified timeline as to when to expect the app to be updated with M1 and M2 support.