A Broken Android Gallery

This is the gallery on my Android phone.

All these broken images used to be thumbnails for images that had been deleted long ago.  The thumbnails would show, but selecting an image would only show the broken image icon.

Finally, in desperation  I connected the phone to a computer and went and deleted the thumbnail files.  Now it looks like this.

The "images" can not be deleted.  The phone has also crashed and rebooted twice today while I was "viewing" these so-called "images".

I've cleared the application's data, rebooted, installed other gallery applications and done other things as well.  So far, it remains hosed.

I think Google+ did this.  I had all sort of "fun" with "instant" upload and Google+ in the early days.