Do you have replacement string? That is the only broken part.
Need about 50
I'm afraid the cord cannot be replaced or repaired. Once that's broken, you need an all new balance.
We can custom make a balance for you, but before we begin I need to see a picture of the bottom shoe and stamp printed on the metal channel. I would also like you to confirm the length of the metal channel. Once I have this information, I can email you a custom order link for 50 of them.