FWIW, the form worked for me and they turned me down. Maybe try again? I wrote my answers in a doc and copied them in, in case that happened. Sorry anyway- I know that sucks. Good luck on your search.
>>donutp+(OP)
Actually I know the reason for error (I didn’t attach a file), but the generic validation error message turned me off. I expect better from a org that is targeting technical audience.