More info:
All of the links under my blog (Dashboard, New post, Drafts, My 17 posts, Stats) link to my blog via https (SSL) - and I do not have an SSL certificate.
The buttons, however (272 Posts, 87 Comments) link without https - just http://www.muiiio.com/...
So, could this be the problem with Klout as well? Do I need to install an SSL certificate?