How to install OwnCloud?

Hey everybody,

I tried to install OwnCloud, but it doesn't work. When I try to load the page the Chrome debuger gives me this error: Refused to execute script from 'https://nandom.de/index.php/core/js/config.js?v=[...]' because its MIME type ("text/html") is not executable, and strict MIME type checking is enabled

If you want to sea it yourself: http://nandom.de

Thanks for help,

Jonathan