search.php of twentyeleven not loading get_footer/footer.php

Hi WP-Community ??

I’m working on a new community-project and I mostly use twentyeleven as a basis to build my own WP-Themes. Now I stumbled upon the problem, that the search.php of twentyeleven doesn’t load footer.php i.e. get_footer at the end of the php-file doesn’t work, which breaks my theme, though I didn’t change anything in that file.

Is there maybe a backup search.php build in wordpress which is loaded instead of the search.php from the theme (like with searchform.php for example)?

The website is battlefield3masterguide.de – You’ll see that pages work fine, but when using the searchform in the header, the footer isn’t loaded, which prevents my clearfloat-div from being loaded etc.

Thx for any help. It’s very much appreciated ??