Global Translator problem

Hello,
i have installed and activated the Global Translator Plugin for WordPress.
It’s working very well, it translated all my pages etc.
BUT: if I click on a flag to change the language it logges me out.
The page is translated but I do not stay logged in.
If I log in, I get to the standart language page again.

I have to fix this problem very quick, thats my problem.

Do you have an idea?
Please help.

You could also tell me an alternativ Plug-in, I just want my page to be translated, the post don’t HAVE TO be translated, would be cool, but not a MUST.

Thank you!