“Value.4 is Null”
Got this error when clicking BUY NOW on a Product that had several elements to it.
The Product was setup as a $0 item, but it had Attributes that allowed the Customer to create the proper order.
There was a dropdown field that was Required and an optional set of checkboxes and a Required “Setup Fee” radio field with only one element.
The fix was to simply delete the Setup Fee field and add it back. And I also took the top dropdown and took it off Required…then, after everything worked, I put it back on Required. Not sure what went wrong, but recreating some elements seemed to solve the issue.