I'm having the exact same issue with two small Scorp's I manage. Both in GA not able to efile when I selected to efile both state and federal. But when I deselected efile for state both companies were able to federally efile. Tried to efile state again by itself and got the same error.
Funny thing is I've never been able to efile GA with turbotax in the past. Usual hangup is the "film tax credit" form which has NOTHING to do with me. Every year same thing, gets me in a loop trying to fill out this tax credit form. This time I just deleted the form (I saw a note in the turbotax community saying to do this).
