How to fix the 405 error when trying to submit a sign-up form
"Error 405: This page cannot support this request." is an error you'll see whenever you embed the same form more than once on a single page. To fix this, simply remove one of the scripts from your website's code, and it should work as expected.
To duplicate a form, click on the dropdown menu on the far right and select Duplicate.
Then, navigate to the Content step and click </> Add to your website to get its unique script you can embed on your website.