I also have one other issue that maybe you can shed light on. I have customers having problems loggin in. They create an account only to be told their email already exists (it doesn't) then they request a password only to be told that their email is not associated with an account. I have noticed when looking at who is online, those that stop the process are usually at this point:

https://www.polishpotterystore .com/sale/ajax.php?act=ajaxPayment&method=setNoscriptCookie

I have not seen this before, but what does this mean? I'm not sure where to look to resolve this issue. Thank you in advance.