Import from /csv file, some items fail with the error "Specify Tax Or Tax Exemption".

Import from /csv file, some items fail with the error "Specify Tax Or Tax Exemption".

Hello!

I am trying to import a csv file of all of my expenses for a complete financial year. I get errors for some items with the error message "Specifiy Tax or Tax Exemption". These errors only occur on lines where I have "Postage" as the expense account.

Why is this happening, and how do I fix it? Why is it only happening on the expense account called "Postage".

Thank in advance.