I am not able to log into aaPanel's Terminal, the following error is appearing:
{'result': 'Account or Password incorrect: Authentication failed.,root@127.0.0.1:22'}

I have changed the root user's password a few days ago using the passwd command through the terminal. But now I am not able to log in through the aaPanel's Terminal or through Windows Command Prompt's ssh command.
I tried resetting the password of the root user through aaPanel -> Secirity menu -> SSH tab -> Root password textbox, but still the problem is not solved. I also tried setting old password (with which Terminal access was working) through this page, but still no success.