Console password lost, and "reset password" solution hangs.

All the pc’s have been shut down for more than 1 year. As I boot them all up; they show “Avast must be updated” messages. no surprise there.

Problem 1: I forgot my special, very secret console password!
I read the forum answer for reseting your password. It hangs and gives messages about “Cannot connect to database”
Yes, the database file is there. It just will not open.
No, I can’t uninstall because it asks for my password to do that.

Help.
thank you.

https://blog.avast.com/2014/04/03/how-to-reset-your-avast-administration-console-password/