multilingual URL

I have a multilingual site. There is a strange problem i am facing.

Whenever i try to access a non permitted page and redirected to access denied page.
Then i log in with the credentials then the page shows double language prefix.

For example :-

www.mysite.com/en/en/content-page

Dear drupal Internationalization users,

I am stuck on translating is the 'Contact Forms' URLs in Drupal version 7.

Example:
http://www.blazeglass.com/en/contact
http://www.blazeglass.com/de/contact << that I would like to be >> http://www.blazeglass.com/de/kontakt

Would anyone be able offer any advice or tips, I have searched for days and read a lot, but this particular issue is proving hard to find a solution for.

thanks a lot,

rains