Piwik isn't recording anything (no replies)

Hey there,

I'm new to Piwik, so after the (very easy) installation I got my first problem... Piwik is running like a charm... but it isn't recording any of my pages.
All of the log tables in my mysql database are empty.

The link to my Piwik is http://stats.synv.org, maybe anyone could have a look at this, please? Would be awesome!
I switched from Google Analytics to Piwik, and I'm impressed of the ton of functions this program delivers, but now it would be awesome if I could use those functions too, haha :)

Piwik Version: 2.7.0 (latest version)
Running on:
- Windows Server 2008 R2 - IIS 7.5
- PHP v5.6.1

Any help would be appreciated here. If you need more informations just tell me.


Thanks!