If you like to multi task when using Blogger, you probably keep a few windows and tabs open, in the browser.
If you have lots of tasks running simultaneously, and you try to Share to Google+ from the dashboard Posts page, you may click on the "Share" link, the "Share on Google+" window pops up, you watch the window load - and just as the window is almost complete, it vanishes.
With "Share on Google+" having closed, the Posts menu - and all of the links in the page - become gray. Nothing works.
When you see the gray screen, you may have to restart the browser tab or window.
Even clicking on "Refresh" or hitting a "Refresh" button does nothing. The only option is to close the tab or window, or reload from a bookmark - and start over.
The "Gray screen of death".
Blogger Engineering are aware of the problem.
This problem has been noted, and reported, by Blogger Support.
We have a new Problem Rollup, in Blogger Help Forum: Get Help with an Issue, where we are requesting details from any blog owner who is experiencing this problem.
If we are to convince Blogger Engineering to fix this, we have to identify an affected population. If you are experiencing this, the solution starts with you.
You may want to close all unnecessary tasks, when Publishing or Sharing.
My personal observation of this problem is that I see it more, when I have lots of browser tabs open - or extra programs or services running. You may have more success when publishing or sharing posts, if you first close all unnecessary tabs and windows.
An Important Update
If you did not use a Blogger / Google account when you Followed this blog, years ago, you are probably not Following now . During the past...