Cernocky on "[Plugin: WordPress SEO by Yoast] Catchable fatal error"

WordPress version: 3.5
WordPress SEO version: 1.3.4.4

I did this:
I opened overview of posts

I expected the plugin to do this:
I expected to open the overview of posts.

Instead it did this:
http://easyinvest.cz/wp-content/uploads/2013/01/screen1.png

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Can anyone help me? I am a beginner and i can't solve this situation. Thanks.

http://wordpress.org/extend/plugins/wordpress-seo/