while applying a leave its throwing error

Summary:

Employee is working in shifts but while applying the leave its throwing error.

Contact your absence administrator with the following details: Module AbsenceEval, Method createProcessingData and Error Exception during absence processing. Cannot invoke "java.sql.Timestamp.getTime()" because the return value of "oracle.apps.hcm.globalAbsences.processes.absEval.protectedModel.pojo.AvailabilityDataCache.getStartDatetime()" is null.

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