I am trying to configure a contact form using the mailer extension. In going thru the steps outlined in the tutorial: https://docs.wappler.io/t/sending-form-data-to-email/2858, I get to the step where I am supposed to link the page & form. I am able to link the page, however the dialog will not recognize the form on that page. I have made sure to have an ID & Name for the form. I have tried various things including restarting etc but I am unable to link the form. Any ideas why? This is a PHP based site.