If you've setup an account with us, selected books and a storefront size, copied over your "API Key" from your AddLibra Dashboard Home page and saved the "API Key" to your Blogger "Configure Gadget", but your storefront won't display or displays a blank white box its most likely related to accidentally copying an additional charter or blank space into the API Key field.
Be sure to copy only the specific characters in the “API
Key” field from your AddLibra dashboard Home page to the “API Key” field on the
Blogger “Configure Gadget” page. Any
additional characters or spaces pasted into that field will cause your storefront
not to display or display only a blank white box where the storefront should
appear. Removing any additional
characters or spaces from the “API Key” field on the “Configure Gadget” page and
saving should refresh and resolve the issue and allow your storefront to appear
correctly.