SAP Message 3G449 - Internal error: & &

Diagnosis
Due to an out-of-sequence reversal, the posting index of the postingruns that refer to this payroll result must be adjusted.
An internal error occurs when the posting index is adjustment: &v1& &v2&
.
This situation should never occur.

System Response
The out-of-sequence reversal is not performed and the posting index isnote adjusted.

Procedure
Contact SAP.