When you say "it appears that the credit note was applied to the invoice on 11/14/43" do you mean that the credit note was actually dated 11/14/43? If so then just add a debit note for the error date and then another credit note for the correct date.

If by applied you mean that some method has already been tried to correct this and/or to match the credit note to the invoice incorrectly then you should give us a call to help you unravel any other transaction error that has caused this to occur.