I did everything required by the tutorials. I copied the action link into the form, but doesn't work. Now I always get the error message by default when I load the site up on the server and don't know what to do. Would appreciate some help guys.
Here's the public link, signup form at bottom: https://webflow.com/design/libroswunderlich?preview=1fd3b6ac6a1ba5f49ea885b9b7f39981
Appreciate your time guys!