Anytime we report a problem with our blogs, the most important question to answer, when we ask for help in Blogger Help Forum: Something Is Broken, is
What's the BlogSpot and / or domain URL?When we login to Blogger, and look at our dashboard, there's an equally essential detail involved here. That unique detail is called the "ProfileID" / "ProfileURL".
If you are logged in to Blogger, go to your dashboard, and look at your profile.
Find your account name / picture, at the top of the screen. Click on the picture, and you'll get a popup window, containing a button or link "Blogger profile" (possibly, "View profile"). Click on the button / link, as appropriate.
That will give you a display, with a mysterious URL. Here's the URL which used to apply to most of my blogs. If you click there, you will probably see the URL which I have now.
08069634565746003311Here's the URL which now applies to most of my blogs, and which now replaces my Blogger Profile.I now have.
What's your Blogger / Google / Google+ ProfileID / ProfileURL? If you are seeing a problem accessing your dashboard, or finding a blog that you know is yours, the ProfileID - and possibly the ProfileURL - will be an essential clue.