UK Payroll - RTI FPS Error

Hi SAP Experts,

I am relatively new with RTI set up and I am getting the errors when running the FPS report:

Amount from LEL to PT is nil though amount from PT to UAP is has values (EE affected - leaving employee)

Amount from PT to UAP is not between 0 and 99,999.99 (EE affected - transferred to a new payroll area)

Appreciate your inputs.

Thanks,

Kam