405 Not Allowed - Form Submission

Hello.

I am trying to create a portal that allows users to approve or reject items presented to them.

The items are pulled from our backend database.

I need to create a form that uses a webhook to communicate with the backend.

Currently, when I submit the form, I am getting a “405 Not Allowed” message in the browser. I’m not sure why…

Can anyone help?

The page is: /approval-portal/fZCZDF8dqg


Here is my site Read-Only: LINK