Contact Form 7 URL problem with qtranslate

Hopefully someone can help…

I use Contact Form 7 together with qtranslate. Everything works fine in the default language german, but when I add another contact form on a page’s secondary language (english) following happens:
form shows and you can fill it in correctly. The moment you submit the form it shows no error message, no confirmation message,… and you get redirected to the same page but with the default language! Contact form 7 adds &#wpcf7-f6-p102-o1 automatically!?!?

URL with the contact form: https://www.gutshof-zum-stillupper.at/?page_id=102&lang=en
URL after submitting: https://www.gutshof-zum-stillupper.at/?page_id=102&#wpcf7-f6-p102-o1&lang=en

How can you fix that???????? THANXXXXXXXXX!!!!!