Can't efile state (Indiana) using download Turbotax Deluxe

I am using a downloaded version of Deluxe. I tried to e-file my Federal and state (Indiana) taxes but when I clicked on "Transmit Returns Now" nothing happened. I tried several times and used various suggested methods but nothing helped. Eventually I efiled the Federal return separately. My Federal return was accepted. However, when I try to efile Indiana and click on "Transmit Returns now," again nothing happens. I am not getting any errors and my download seems to be up to date.