Why am I getting "Incomplete Values" error on my form?

customers keep getting error that says form is incomplete then it resets their whole form.

I have tested your form and I was able to get the same error, I then cloned the form to my account and it worked as expected. 

I have been checking your form on the Form Builder too and noticed the "Shipping Address" is not present on the form, did you add this field before and deleted it? 

While checking your form I noticed there are some conditions have missing fields, I would also recommend you to fix this in order to avoid issues with the rest of conditions: 

I cleared your forms cache for now, may you please kindly test your form again and see if the same issue happens? 

We will wait for your response. 

I added the shipping address back that wasn't working correctly before and it's still showing the same error

reverted it to an older version now it works