Bernie,It probably has to do with your available storage space. It is free up to a limit. Then you need to purchase more.This link might get you going in the right direction.https://support.google.com/picasa/answer/39567
PS: The first 15GB is free.
Darel,Thanks for the note. According to Google Storage Plan I am using just 6 percent of my allocated space. So i don't think that is the problem.
Maybe you haven't paid your pixel taxes and the IRS seized your pictures? Or maybe they are furloughed for one day due to the sequester.. :p
This has been annoying. I think it somehow relates to Google's switch from Picasa to Google Plus as a photo repository. I will fix the glitches as I find them, but they seem to be getting worse. If you are a blogspot blogger, be on the look out for this.
Anymore comments on this? Just noticed all of my postings in 2009 are gone, but 2010 is okay. I definitely don't think I've used up my 13GB either.