Alert: Individual post page (permalink) can sometimes be blank pages, and what you need to do

Recently I answered a question on the Google Blogger Help forum by including a link to How to build traffic to your blog (click "BACK" button to get back to this page). She alerted me to the fact that the link leads to a blank page. I checked and found that it does lead to a blank page. I went the Dashboard of that blog, get to the "EDIT POST" tab, and click "VIEW" in that post, and got a blank