In some cases when you experience issues during checkout these errors can be stored in your shopping session. If you're seeing error messages repeatedly while checking out a quick solution is often to logout of your account and try placing your order in a private browser window without signing into your account. You might also want to try clearing your recent browsing history by pressing CTRL + SHIFT + DELETE for Windows users or by selecting Clear History for Mac users.
If you continue to see issues and cannot complete your order please contact the customer service team for assistance.