Error in calculating cell while using excel macro

Client used the following query in a cell of his excel file:

=IF(DAY(JulSun1)=1;"";IF(AND(YEAR(JulSun1+2)=CalendarYear;MONTH(JulSun1+2)=7);JulSun1+2;""))

When inserting as an attachment using the Excel Macro, the following error is generated:

Error rendering macro 'viewxls' : com.benryan.conversion.ConversionException: com.aspose.cells.CellsException: null Error in calculating cell B5 in Worksheet Jul

Another customer at this comment has a similar error.

Testing in Office Connector 3.0.3 on Confluence 4.1.3 and 4.1.4