Help me please redirection and cache problem with my site.

Help me please redirection problem with my site.

When I place; escuintla.protecs.biz URL instead of going to the home page, go to this address http://escuintla.protecs.biz/category/uncategorized/. This address no longer exists, the category "Uncategorized" was deleted.

This only happens on Google in the browser works well.
Apparently it's a problem of cache memory, poruqe in google there is an arrow that señaña "in cache".

I am using WP-cache, and memory have emptied, but when I search on google, again it appears non-existent address. (http://escuintla.protecs.biz/category/uncategorized/)

Alguen know I can do?

thank you very much to whoever answers