To resolve this error please use the following steps:
Navigate to Item 10 Income - Gross Interest.
Tick the box Did the taxpayer, whilst in a period of non-residency, receive interest from any source within Australia from which withholding tax was not deducted?
This will populate another grid.
Ensure the field Taxpayers country of residence when interest was paid or credited' has the country entered.
Enter the alternative countries of residence in this worksheet.