After removing a blog in the Admin, the blog is still shown in the stream and if you click it you get a 400 error page
I removed the blog "testing blog post kindly ignore v2" in the Admin area.
However, if you scroll down on
https://www.tenniscommunity.nl/
you see this blog is still shown in the stream
if you click it, you get an errorpage.
Please make sure if the Admin deletes a blog, the posts of it in the stream and on the website are deleted too?