Schedule C Line 27b unsupported form

In TurboTax Online, 

• go to your Self-employment income section
• Select "Review"
• Continue through all of the income screens until you get to "Find 33% more expenses when you connect your financial accounts"
•  Scroll down and select "Type in my expenses"
• Click on "Get Started"
• On the "Select the expense categories you have" screen, scroll down to the bottom 
• Where you see "1-3 of 16 < 1 2 3 4 5 6 >" click on the right arrow until you get to "16-16 of 16" 
• Above that there will be "Energy efficient commercial buildings". Mark the box next to it and click on Continue.
• Answer NO to the next series of questions
• Click on the Edit pencil icon next to Energy Efficient commercial buildings
• In the box for "Enter your energy efficient commercial buildings expenses", delete anything in that box
• Click Continue and scroll down to "Energy efficient commercial buildings" again
• Click on the trash can icon and then click on "Delete This"

You should be able to file after clearing and deleting.