To go back to a lower version or the Free Edition you can try to clear and start over https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-clear-and-start-over-in-turbotax-online/00/26444
If you started your tax return in TurboTax Free Edition (Form 1040 with limited credits; roughly 37% of taxpayers qualify), you won't need to clear and start over. You can select Switch to Free Edition instead.
In the Turbo Tax Free Edition, information that you can enter is limited now. Why do I have to upgrade from the Free Edition?
https://ttlc.intuit.com/community/upgrading/help/why-do-i-have-to-upgrade-from-free-edition/00/26379
Or try the IRS Free File program
https://www.irs.gov/filing/free-file-do-your-federal-taxes-for-free
If we detect that your tax situation requires expanded coverage, like deductions for owning a home, unemployment income, or self-employment income, we'll prompt you to upgrade to a version that supports the forms you need so that we can maximize your tax deductions and ensure you file an accurate return. Free Edition Info
As long as you haven't submitted payment, deducted the TurboTax fee from your refund, or registered your product, you can erase your return and start from scratch in TurboTax Online. You can’t clear and start over if you've done any of these things, so you'll need to manually edit your return.
You can also select Switch to Free Edition by following the steps here. Note: TurboTax Free Edition is for customers who are filing Form 1040 and limited credits only. Roughly 37% of taxpayers qualify. If you have additional forms or attachments, you’ll need to use a different TurboTax product.
Click this link, choose your platform, and follow the steps to clear and start over.