[OregonYeti]

The compressor might have overheated and been damaged from lack of refrigerant to cool it. Hopefully not.

If the compressor's ok, the system will need repair for the crack, pressurizing the system and making sure it holds pressure (a leak test), system evacuation to a vacuum of about 700 microns Hg, and then recharging with new refrigerant. That takes a while to do.

Either way it's not going to be a cheap repair.

It's a good idea to try to prevent an "oops" happening with the copper tubing. I'm not saying you didn't, since sometimes it just happens. I'm just saying that in general it's a good idea to try to keep them out of places where they might easily get banged by accident.