Piwik not tracking?

I have installed Piwik on my site heliamphora.nl its a site on wordpres 3.9 i also have the piwik plugin and at setup inserted the auth code.
I always received 0 no visitors no time etc.

The code is in the pages (i don’t know where to find the pages in wordpress but when i right click in firefox i could get the html code

part:

Please see this faq: Piwik doesn't track any visits and pages, and shows "There is no data for this report" in all reports. - Analytics Platform - Matomo - maybe this helps?