problem with form module

[toengi]

I tried to include a (advanced) form to our my webpage. I only created a short sample form.

(Have a look at http://www.verrockt.ch/pages/form.php )

after submitting the form I get a browser error 'Internet Explorer cannot display the webpage' and I received no E-Mail notification with the form entries.

Did I miss any settings or do I need any additional addons?

Has anybody an idea?

Thanks for you help