I am being kept from e-filing because it says Return claims a Solar and Wind Energy Credit carryover." I had left the section blanked and tried, how can I correct this?

Assuming that you're working on a New York state return, there may have been a mis-entry of information of data at some point.  To delete any erroneous data in the New York interview portion of TurboTax Online:

1. Open TurboTax Online
2. Select Tax Home in the left pane
3. On the  Hi, let's keep working on your taxes! screen, select the dropdown on the right side of the State Taxes box, then select Start, Continue, or Pick up where you left off
4. Select  Edit to the right of New York
5. Proceed through the state interview until you come to the Take a look at New York credits and taxes screen.
6. Scroll down to Other Tax Credits, and select Start or Update to the right of Nonrefundable Credits
7. On the Nonrefundable Credits page, delete any entry next to Solar and Wind Energy Credit Carryover
8. Select Continue
9. On the Take a look at New York credits and taxes screen, select Continue

If this isn't your issue, feel free to re-post with more information.