Billing does not exist (Error)

Hi developpers,

I have a problem I save an invoice (credit memo) the system create only the number of the invoice and not create the account document. When I try to open the invoice the system generate an error message (Billing document does not exist

Message no. VF 041 but in table VBRK there is the record with the number of invoice and other data.

Ih save others invoice the system work correctly.

Have you an in idea?

Thank you in advance