Where do these strange transitions with the ending "Saved" come from?

Question

CMS

In the journal "Viewing Errors 404" Drupal, constantly in the top such strange transitions:

Where can they come from and how can they be dealt with?

Answer 1

this search engine gives a link to a saved copy. either there is an error in the search engine, or its robot crawls at this address. What do you care about 404 errors?
you can just disable dblog