Why it is showing error while Submitting the Payroll?

Why it is showing error while Submitting the Payroll?

Kindly check the Basic salary of an employee under the "Progression info" tab, and make sure the "Effective Date" should not be duplicate.
To check the basic salary, go to "Employee" module edit the employee and click "Progression Info " tab.

                         
For more information, please contact to support team.
                       

Product Version: SMEPayrollTM Version 11