Hey WordPress Community, i need your help, i have a problem with my wordpress site and a plugin from yoast called WordPress SEO v. 1.4.22.The following situation: I used WordPress 3.8 and i did a url change for a site called "portfolio" to "referenzen" and into the advaced tab from yoast plugin i made my 301 redirect. After testing my new page i get a blank page. If I disable the plugin the page is displayed. The 301 redirect in the htaccess file works good i test it with site: mypage etc on google. I like to use this plugin because i have made all my onpage seo with it.