Hello I have been using your ReDj component for several months and today received an unexpected email from Google webmaster tools:
Increase in not found errors
Google detected a significant increase in the number of URLs that return a 404 (Page Not Found) error. Investigating these errors and fixing them where appropriate ensures that Google can successfully crawl your site's pages.
I checked and since November last year Google has registered 2000 soft 404 errors and 1000 not found errors.
The details for the above were specified as:
Target url does not exist and your server is not returning a 404 response code.
Your server is redirecting requests for a non existing page instead of returning a 404 error message this creates a poor experience for searchers and search engines.
Can you help please is this your component which I have poorly configured and if so an you explain how to optimise it.
Thank you
Dave 
Forum
