Not sure from the outside, but I see a couple things you could look at.
You have your FURL’s working OK with alias paths. Your Base Href looks good.
Your form action is "/contact". I wonder if you might want "contact" there without the slash. You could try that hard-coded, or play with whatever variable you stuck there.
Another minor thing that is common when newly pointing your domain is that you still have some cruft left over from the previous URL. "~success" and that sort of thing. Take a look at your links and you’ll see. There are 2 quick ways of cleaning that up - you can either uncache your Wayfinder calls, or possibly better yet, just clear your site’s cache if you’d like to keep cached Wayfinder calls. Not a huge deal, but you may as well clean that up.
Hope that helps, Dave