All the older years need to be updated in order to get access to them, an alert went out last summer warning everyone to update or theyd lose access after the 1st of the year.
Go to the Windows Start button > Programs/Apps> Proseries 2019 > Update
Just fair warning, when you log into 2019, it may prompt you to change/update your Intuit password (I know 2019 does it to me when I dont use it for a few months, I think its got a password change timer built into it).
