2.31 Why is Paid column in Payslip is Zero?

In the Payslip1A.Report format there is a Column

- Paid = Total Contribution Deduct/Paid from the Previous Process(AdHoc/Frequency) for the Selected Process Month

- Current Month = Total Contribution Deduct/Paid for the Selected Process Month

- Year To Date = Total Contribution Deduct/Paid for the Selected Process Year