http://www.dreadfulgate.de/wordpress/eng/ took me to a 'not available' page in chrome and THEN loaded... o.O
http://www.dreadfulgate.de/wordpress/eng/
500: HTTP/1.1 500 Internal Server Error
Server IP Address: 62.27.5.102
Date: Wed, 01 Oct 2014 22:53:12 GMT
Server: Apache/2.2.15 (CentOS)
X-Powered-By: PHP/5.3.29
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
X-Pingback: http://www.dreadfulgate.de/wordpress/eng/xmlrpc.php
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 15316
Connection: close
Content-Type: text/html; charset=UTF-8
But it loaded!!!
Okay that's bizarre. What happens if you disabl;e the .htaccess in root?