I had the same problem. I unclicked File State Return and just transmitted the Federal return. It went right through.
I went online to my state DOR and there was a message stating that they are not accepting returns until 2/3/2022.
I went back and clicked E-File state return and tried to transmit again and I got the same message that it could not be transmitted. I will return to transmit it on 2/3/2022. Try removing your state return and see if your Federal will go through.
Turbo Tax is still showing that I already paid for the State return, so I don't think there will be a problem later.
