Mainly, you just need to update your code in /path/index.php (line 123) that tries to load a non-existent file: /kunden/path/inc.temp/.php And make sure it can't be tricked into loading files it's not suppose to.
That fact that people are constantly running automated hack attempts on your website is just how it is for every website on the internet.
Let me know any questions.
Dave Edis - Senior Developer
interactivetools.com