I upgraded  to the latest website pro version from website x5 proffesional and now when I have uploded the website I cannot receive orders as the message buyers get when hitting the buy now is “generic error”

Now i am losing sales!

The website is www.theceramicknobcompany.com

My hosting company cannot solve the problem for me as they say

thank you for getting in touch with us about Hosting.

Technical Support can only provide assistance with issues related directly to the provision of services purchased from ourselves, such as accessing emails or accessing web space. Unfortunately we cannot provide support for scripting directly.