I had to deal with my states exchange website. Eventually they told me to print some forms and mail them in for manual entry. Of course they enter it wrong and I spent almost two months for and probably 5 hours to have them correct my address.
Guess the states have done no better. I still don’t see why states didn’t just clone the fed website and edit it. Starting from scratch just cost millions of unnecessary dollars. Especially if most states’ websites aren’t designed any better.