Hi Chris, let me give you a more thorough update. At the time you posted, we were still debugging what was going on with the server your e286e30a121d86 Machine was on. We now know that it was damaged, and if you look at the dashboard now you should see:
A server hosting some of your apps has suffered irreparable hardware damage. Please migrate your Fly Machines to other hosts and restore volumes from any backups.
And it looks like you have scaled up some Machines elsewhere, which means you should be good to go. The zombie Machines are the metadata ghosts of the Machines that were on the dead server. We need to update our system to delete them from the backend. That will happen soon, but in the meantime, know that you are NOT being charged for them, nor is the Fly Platform trying to direct traffic to them.