cust_pay_batch add row

[victor]

I need to add 3 rows to table cust_pay_batch;
I added the rows, I run dbdef_create <user> as freeside.
I add in cust_bill.pm, sub batch_card lines with my new fields from the
table.
(So I have a batch event)
Now when I do Bill, the error is:

Error processing your request
Your request could not be processed because of the following error:

WARNING: Event run but database not updated - error inserting
cust_bill_event, invnum #11366, eventpart 6: Unknown invnum 11366

But this invoice exists.
If I delete the lines that I wrote in cust_bill.pm everithing works fine.
But I need that lines.

Thank you.