I have installed Yoast SEO plugin, but somehow I regret it now! Here is why!
I'm using a customized theme for WordPress, now after installing Yoast I get Design Problems changing the actual pages I created to ARCHIVE category.
Now I'm stuck, because when I want to deactivate it, the same thing occurs and it crashes with a bunch of 404!
I will appreciate any help from the Yoast people themselves or anyone with the same issue.