Payroll's Error message: Posting balance is not cleared (period 02 / 2014 a)

Dear Experts,

I am new to SAP HR. And would like get help for this issue

After EHP 6 upgarde, when process the payroll, system prompt this error message: Posting balance is not cleared (period 02 / 2014 a).

Checked the RT and it showed that the tax employee deduction was RM90.93. But when it comes to payslip display the tax amount showed different figure of RM90.94 which might be the cause for “posting balance is not cleared” message