SAP Message >2722 - Program error: Payment form number &1 was not reserved

Diagnosis Function module FKK_PYFORM_INSERT was called up to save data for apayment form. Payment number &V1& was assigned, but this number had notbeen previously reserved. System Response Error message. The data for the payment form cannot be saved. Procedure INCLUDE NA_SYSADMIN1 OBJECT DOKU ID TX Procedure for System Administration INCLUDE FICA_NA_OSS OBJECT DOKU ID TX