component not found

I was working in some articles and when I was checking the links I got this error:

You may not be able to visit this page because of:

an out-of-date bookmark/favourite
a search engine that has an out-of-date listing for this site
a mistyped address
you have no access to this page
The requested resource was not found.
An error has occurred while processing your request.

got an idea ? I don´t know what it´s happening

Maybe you changed alias of article or some referencing data that affects link, and your menu item stayed same as before, so it point to non-existing link.