In Google Analytics I get a soft 404: Here's what I get
The target URL does not exist and your server is not returning a 404 (file not found) error. More info.
Your server returns a code other than 404 or 410 for a non-existent page (or redirecting users to another page, such as the homepage, instead of returning a 404). This creates a poor experience for searchers and search engines.
Any ideas on how to fix?