ODK-Aggregate: publishing problem

Hi, dear all.
I'm using ODK-Aggregate v2.0.3.
To publish data to spreadsheets, I often used altessedac@gmail.com as Owner's email address; but yesterday, using that same email address failed and I received the following message:
Please, confirm that the owner's email you've introduced is correct: altessedac@gmail.com
and I was not prompted to re-enter the email for confirmation.
In advance, thanks for any help.