SAP Message CACSSESTD071 - Error while determining due date details in stt.schedule horizon &1 - &2

Diagnosis
The system was instructed to execute the tool function of the standarddelivery of logical services for the creation of settlement schedules.However an error has occurred. The system cannot determine the planneddisbursement dates in the settlement schedule horizon &SYST-MSGV1& -Syst-msgv2 with period length syst-msgv3 syst-msgv4 .

System Response
The creation of a settlement schedule cannot be continued. Processing st
ops.

Procedure
Contact your system administrator for an analysis and solution of the pr
oblem.