qTranslate slug causes duplicate content

Hi, the plugin works correctly, but it has a big problem: it causes duplicate content and for Google this is not really a good thing.

I’m making some test on a site and I’ll show you the problem.

I have this page https://www.oscar.solutions/contact/

If I select language Italiano, the browser returns the page https://www.oscar.solutions/it/contatti/ and this is correct.

The problem is exists also the page https://www.oscar.solutions/it/contact that is a duplicate of https://www.oscar.solutions/it/contatti/

Google doesn’t like this behaviour, so for seo this plugin it’s not good.

How can I fix this problem? Nobody have take on this issue?

Thank you very much