If you did not claim a credit for solar energy, you can delete Arizona Form 310 from your return.
Click this link for instructions on How to Delete a Form in TurboTax Online.
This link has info about the Arizona Credit for Solar Devices for your information.
I am having the same issue as this poster (and a dozen others who have posted as well) but that form isn't listed when I go into my forms. Form 310 isn't in the list. I have no solar energy credits, never have. But it won't let me proceed without giving it an address.
@Fenixforce sent this to me because they were awesome enough to figure it out. I just did it and it worked:
So just fill out the form 310 even if you are not taking the credit and the rest of your 2020 return. Then once the review process is done, before submitting...
Head over to tax tools, then tools, then delete forms. Form 310 should appear and be able to delete.