Why is my PayPal purchase field not showing on my form?

Hi. The PayPal product is not showing on the form, even though I have required it. Please help.

https://secure.jotformpro.com/form/51733179030955

I have cloned your form and found out that the Payment tool is set to be hidden: 

You can fix this by: 

I hope this helps. Let us know if you need further assistance. Thank you.