Auth Fail to deploy to server

Hi Team
We are facing issue while deploying to the server from jenkins.Below mentioned the error:
Can please confirm when this error occur : End of Pipeline com.jcraft.jsch.JSchException: Auth fail at

Success code from [100‥399] [Pipeline] } [Pipeline] // stage [Pipeline] stage [Pipeline] { (Deploy to PROD) [Pipeline] sshPublisher SSH: Connecting from host [AWP] SSH: Connecting with configuration [badlavserverPROD] … SSH: Disconnecting configuration [badlavserverPROD] … SSH: Transferred 1 file(s) [Pipeline] withCredentials Masking supported pattern matches of %identity% or %% or %EBLServiceRequest% [Pipeline] { [Pipeline] sshCommand Executing command on dotnetcore[]: C:\Jenkins\Tools\deployBadlaavProd.bat sudo: false [Pipeline] } [Pipeline] // withCredentials [Pipeline] httpRequest HttpMethod: POST URL: Content-Type: application/json Sending request to url: Response Code: HTTP/1.1 202 Accepted Response: Success code from [100‥399] [Pipeline] } [Pipeline] // stage [Pipeline] } [Pipeline] // node [Pipeline] End of Pipeline com.jcraft.jsch.JSchException: Auth fail at com.jcraft.jsch.Session.connect( at com.jcraft.jsch.Session.connect( at com.jcraft.jsch.Session$connect$ Source) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall( at at at org.hidetake.groovy.ssh.connection.ConnectionManager.connectInternal(ConnectionManager.groovy:107) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Native