Hi Klas...
I did forget that that was the advice you gave on a previous post... however, I update Updater to 1.3.4 so that I could then update everything else.... but not able to update anything.
I re-entered the secret key from my Seblod profile page.
but no joy... site is hosted on a server (ie not locally on computer).
Joomla is 3.7.2
Seblod is 3.11.2
Updater is 1.3.4
PHP is 7.1.5
List of Plugins to Update
Updater Version
Error Messages