Payroll Income Tax deduction wrong

SOLVED

The accounting firm I work for has SAGE 50 Canada and we have the payroll module. 

I have a client who does manual payroll which I now want to enter into  SAGE 50.  I get the bookkeeping once a month, and I have one payroll cheque where the tax calculation is off and I'm not sure how to enter that payroll cheque.

Can you please help?