Question how to solve ssh login access permission denied

[hany2002eg]

Server operating system version

I don't know. How to get

Plesk version and microupdate number

18.1.54

Hello,

I'm experiencing an issue with logging in via SSH to my server. I haven't changed the root password, and I successfully logged in yesterday without any problems. However, today, when attempting to log in, I encountered an "Access Permission Denied" message. Can you please assist me in resolving this issue?

Thank you very much.