Why do I see many URLs in 404 errors that never existed on my site?

The redirection module logs all 404 errors returned by your server.

These may be old URLs from your site that no longer exist, a customer entering a wrong URL, or bots testing various URLs on your site.

Often, 404 errors include the "wp-admin" URL, which is used to access the admin panel of a WordPress site. This is a typical case of a bot trying to access your site's admin area without knowing you are using PrestaShop.