Why is the form showing net employment income when I did not report any employment income?

This FAQ lists some possible reasons why TurboTax is telling you that you are self-employed: https://turbotax.community.intuit.ca/community/navigating-turbotax/help/why-is-turbotax-telling-me-i-m-self-employed/00/873741

I indicated in the questionaire that I am not self employed. The only income I received was my pension income and some investment income. So the suggestions were not helpful.