I created a droplet this morning set the ssh key, I am able to login through root, but I am not able to login through the user I have created, I also put my user into super user group through the commad.

usermod -aG sudo $USERNAME

I checked the sshconfig file and sshdconfig, in both the places PasswordAuthentication is set to Yes, But every time i try to login through the user it throws the error.

user@ip : Permission denied (publickey).

I don’t know what’s wrong in it, I am new to digital ocean, so may be I am doing some thing silly.