Refer the below steps and unlock the payroll and Re-process the payroll.
Step 1: Unlock payroll using below user manual link.
http://support.paybooks.in/a/solutions/articles/4000093080?portalId=46092
Step 2: To Process, the payroll for a particular month, do refer the below video link
https://www.youtube.com/watch?v=54WTnAkUPYU&feature=youtu.be