Payment form with calculations is not working.

The form described above worked perfectly. I've cloned the form in an attempt to create another where the user will have the option of registering for the event and making a donation, but I'm missing something. 

Here's the link to a clone the form that works: https://form.jotform.com/JFedGMW/clone-of-live365

Here's a link to a similar form that I built from a clone of the form above that does not work. https://form.jotform.com/JFedGMW/ladies-night-out

What have I missed?

Your are not passing the total to the payment field, please disable the suggested amount:

Then get the total from the Form Calculation widget where you are calculating the total to be paid: https://www.jotform.com/help/275-How-to-Pass-a-Calculation-to-a-Payment-Field