Update VirtualBox version 6.1.38

[Jeanjean]

long time not used
but that time i remember i can not install it and get rollback installatin.
but follow instruction and report here if you want
https://www.virtualbox.org/wiki/Bugtracker
https://www.virtualbox.org/newticket

That's the problem : to make use of these links you must (create a) login as a professional user.
The fields that must be completed are reserved for companies.