If you have an Error status in any of the Process Status columns, you need to read the appropriate 'Message' column value and investigate and correct the data. The error messages relate to data on the same row in the relevant section.
To correct the information either key directly into the worksheet, or open the Header or Lines form to select from existing lists of values.
Once the data has been corrected you can choose to either upload one row, selected range of rows or the entire worksheet.