When you enable payments in your form, you must configure at least one of the automated or annual payment methods. Otherwise, an error message will be displayed when the user submits the form. Login to Neartail > click on the form to open it > Edit page will be displayed > In the Neartail Edit page, click on the settings gear icon for the Submit section > Button settings page will be displayed > disable the payments or configure one of the payment methods and click Save.