Website is a GCKstore template running on latest versions of virtuemart and joomla.
site is https://www.cerrigspeir.com/
You can add 1 item to the cart, if you try to remove the item it shows that it was removed initially but if you go to another page and try to add another item, (after the popup shows that item was added) it goes back to the original item in the cart. You can also not modify quantities. The only way for me to remove the item or add another is to log into the admin backend and clear the cache. Then it will, yet again, allow you to add 1 item to the cart and not modify it further. I have tried all suggestions posted on the virtuemart forum and so far nothing has worked. Someone suggested that it is a template issue, please help.