SAP Message 6D009 - Document with reference key &1 does not exist in CoCd &2

Diagnosis
The document with reference key (AWKEY) &v1& does not exist in companycode &v2&: no corresponding document header was determined in FI(BKPF).

System Response
The system cannot continue processing.

Procedure
Notify your system administrator.

Procedure for System Administration
There is a data inconsistency between Table VITAXD and Table BKPF.