[NiFi logging handler] org.apache .nifi.Stdout Stdout 0ther Error : com.jcraft.jsch,JSchException: Auth fail

[#1]

After I upgraded the Ubuntu system from Ubuntu18.04 to Ubuntu22.04, NIFI was not upgraded or modified in any way. However, in the NIFI Web UI, a task using 127.0.0.1 and key connection could not connect, and the error "[NiFi logging handler] was reported. org.apache .nifi.Stdout Stdout 0ther Error: com.jcraft.jsch,JSchException: Auth fail", the permissions of the key have also been modified to no avail. Everything was normal before upgrading the Ubuntu system.