Display OLD LOG in ECC6

Hi Guys

does anyone know the significance of the OLD LOG in the ECC payroll . Whne clicked , it give the following message :

05/12/2010 Payroll Driver (USA)

PITAB:S:ARR:::Entry CONTEXT->RESULT_PERSON_NAT-OFFSET_OUT does not exist

PITAB:L:ARR:::Entry CONTEXT->RESULT_PERSON_NAT-OFFSET_OUT does not exist

USTAX:1:3::1:Entry CONTEXT->RESULT_PERSON_NAT-OFFSET_OUT does not exist

EXPRT::RU:::Entry CONTEXT->RESULT_PERSON-VERSC does not exist

Though payroll results are coming out correctly.

Any thoughts?

thanks

W