I'm using an SEO plugin by Yoast but the spider sees nothing?

I use SEO for Wordpress by Yoast. Everything was great until i used feedthebot.com to crawl the site and - it doesn't see a title, description. The keywords are mumble jumble - like ijf and djgqwaemp and atr

I am using the same theme and plugin on my website and the crawler can see all.

I'm not exactly sure where to even start to diagnose this problem. Any suggestions?