Hi daman1,
On your STP lodgement you are trying to make through a Pay Event does it come up with a particular error message? Within the payroll system you only lodge the current year to date figures with the ATO not payslips. If you prefer to have a look on your own I have attached a link of common payroll errors in regards to STP below.
Resolving Common STP Lodgement Issues
Alternatively, you are always welcome to give our friendly support team a call or chat by clicking here.
Thanks,
-Steven