Login incorrect when trying to access supervisor

When I type “login”, I get “Login incorrect”.
Last time I tried I could log as root.
Has there been any change?
How can I access supervisor from ssh now?

ssh 192.168.43.56 -l root -p 22
[email protected]'s password: 

 _    _                                         _     _              _
| |  | |                          /\           (_)   | |            | |
| |__| | ___  _ __ ___   ___     /  \   ___ ___ _ ___| |_ __ _ _ __ | |_
|  __  |/ _ \| '_ ` _ \ / _ \   / /\ \ / __/ __| / __| __/ _` | '_ \| __|
| |  | | (_) | | | | | |  __/  / ____ \\__ \__ \ \__ \ || (_| | | | | |_
|_|  |_|\___/|_| |_| |_|\___| /_/    \_\___/___/_|___/\__\__,_|_| |_|\__|


Our command line:
$ ha help
login
➜  ~ login
a0d7b954-ssh login: