Full Payment Order is Missing

I have an odd situation in which a full payment order seems to be missing in my database. The deposit order is there and is marked paid and completed, however the child order for the balance is nowhere to be found. I’ve even looked in my database where I found the following data:

_full_payment_orders a:1:{i:0;i:408427;}

however there is no order 408427, nor any post in the database with that ID. It’s possible that I accidentally deleted the full payment order (this was my first time taking a deposit and I messed it up several times before I finally (or so I thought) got it right.

Is it possible to recreate the full payment order so that I can complete this transaction? If so, can you tell me how? Thanks!