J-BusinessDirectory - Sell offers

I have a bit of a strange or maybe stupid question regarding sell offers. For some reason if someone is not logged in to the site and they try buy an offer the popup appears saying adding to cart but then hangs. As soon as logged in to the site it ads it to the cart as it should. I cant see a setting for this anywhere. Has anyone else had that issue.

Hi,

Please try to clear the browser cache and make sure that the JBD Sell Offers app does not have the orange triangle (that means it is deprecated and needs to be updated).