Copay Wallet Recovery

I recently tried to check the balance of my old Copay wallet and discovered that Copay doesn’t exist anymore. I restored my backups with BitPay, looked at the balance and transaction history and felt like I was on the right track. However, funds cannot be transferred due to a derived pass error (M/undefined/0/0). It appears that BitPay does not allow editing.

I tried to manually recover the private key from the backup, but I had a problem with the invalid value of the IV/NonCe value (NonCe is 7-13 characters and the backup character is 16 characters).

Do you have any hopes to restore access to these funds?