400. That’s an error.

Google cannot redirect you to https://www.christianbook.com/salt-of-the-earth/joseph-ratzinger/9780898706406/pd/06409?dv=%7Bdevice%7D&en=google&event=SHOP&kw=ingram-0-20%7C06409&p=1179710 because the request was invalid.

This might be because the link was created a long time ago. Try your search again on Google. That’s all we know.