Pagination Problem (Woocommerce)

Hi I’m using Qtranslate on a site with Woocommerce. I have 2 languages on the site. When using the default language (German) the pagination is fine, but in the second language (English) the pagination doesn’t work and the page redirects to the homepage.

The link for the second page in English should be – http://fliegenderteppich.eu/product-category/jewellery/page/2/?lang=en

but it is
http://fliegenderteppich.eu/?lang=en/product-category/jewellery/page/2/&lang=en

The link is here

http://fliegenderteppich.eu/product-category/jewellery/?lang=en

This also happens with other pagination I had on the site.

Any ideas?

Thanks

http://ww.wp.xz.cn/plugins/qtranslate/