How do you create a pivot card in Pivot App and what is it?

I am new to Smartsheet's pivot app. I normally use the Log in with Smartsheet button in the Pivot App to create a pivot table but I wanted to try the "Pivot Card - Create a Pivot card" below the normal login, however when I click on the calendar button, nothing happens. See screenshot. Can anyone help explain what a pivot card is? Does it work for you?