There were a few Schedule C: 1099-NEC carried over from last year. They are not valid this year so I deleted them. The review shows I need to fill in the data still.

You can remove the forms completely from the program by following these steps:

In TurboTax online version: 

• Sign into your account, select Pick up where you left off
• Select Tax Tools, click on the drop down arrow
• Select Tools
• Under Other helpful links, choose Delete a form
• Select Delete next to Form 1099-NEC and Schedule Cs and Continue with My Return

Generally, most taxpayers who receive a Form1099-NEC are considered as self employed by the IRS and required to pay self-employment tax.  You will need to file a Schedule C reporting both income and any related expenses. If this form does not apply to you this year, you do not need to report it. 

Thank you. This is helpful, and I did no freelance work in 2020, but it seems to be an error in TurboTax in general as why should I need to manually go into forms to remove items when I removed them through the guided app section? It caused a good amount of confusion and frustration using TurboTax this year.