Logout does not work

Hello dear forum.

I am from Germany so my English is not so good.

My problem is:

On my site you can not log out of.

So when you press the logout button always get an error message.

Please try it once for yourself.

URL: http://simon.bs-promotion.de/

Name: test
Password: test123

Please log out once you try




Please reply.

You need to enable display_errors in PHP to show the actual error.