Permalinks mistake

Hi guys.

I have a mistake on my website..
in permalinks at my hyperlinks it show
“catogory”/real category name/postname
it should just be
real category name/postname

It does only show that when i click on category..

When i show a post, it works fine as
real category name/postname

here are my links
http://www.rateclubgirls.com/category/sweden/gothenburg/
http://www.rateclubgirls.com/sweden/gothenburg/

a post http://www.rateclubgirls.com/sweden/gothenburg/hello-sweden/