I got the problem resolved. I had to delete the redirect.
There is an old page that is redirected to the new page. However, it’s the new page that I want to edit in Cornerstone. When I click on that page, it comes up black with the error message.
I’m having the same issue. It started yesterday after after installing and activating WebsiteDefender WordPress Security. The message people are getting is “Security check: looks like you are a spam bot. If you think this an error, please email the site owner.”
