Failed to authenticate SSH session: Unable to send userauth-publickey request

[Narendranvel]

Getting this error while pushing the branch. Failed to authenticate SSH session: Unable to send userauth-publickey request rugged = Rugged::Repository.new("/tmp/path/.git".freeze) rugged.push('origin', "refs/heads/master", credentials: credentials)

When Tried without the credentials getting this below authentication required but no callback set error

Is there any way to solve the above issue? TIA.