I think there may be some other issues with Virtuemart and your plugin.
What is happening is when someone tried to make a purchase, it tells them that the email address is invalid - I have had it happen on a couple of orders so far.
its when I get to the check out that I have the problem & it won't accept my address saying my email address can't be registered. I opened a PayPal account so I could purchase from the on-line store, so obviously I'm doing something wrong. I'm not the most computer literate person. I appreciate your help.
# I have now tried at least 15 times to order a leash for my puppy. The message I keep getting when your website asks for the billing registration, (which I enter) is Sorry, the email address can not be registered.
Any ideas?