Problems with entypo-fontello icons

Hello everybody,
as you can see here:
http://www.physiotherapie-richter.de/
The entypo-fontello icons are not visible (facebook icon, search icon, …)

I have created the webside under the subdomain “wordpress.physiotherapie-richter.de” while the old site under “www” was still running.

So now the website can’t find the font-file where the icons are inside.

I hope someone can help me with an solution!

Thank you very much!