Wordpress SEO by Yoast not working

Hello
I installed the Wordpress SEO by Yoast plugin and after the installation, whenever I click on my pages, the content is shown in the above the site title, along with in the page. Please view the page here:

http://www.thedudewhoruns.com/running-playlist/

When I de-activate the plugin, the pages are displayed properly.

Please help.

Thanks

Hi

I checked the link and it looks ok to me.

can you send add a screenshot of what you are talking about

Thanks