If your farm administrator password has expired, please run "ConfigureSharePoint.exe -EnableSharePointProtection" on the ...

1) If your farm administrator password has expired, please run "ConfigureSharePoint.exe -EnableSharePointProtection" on the front-end web server. This will reset the WssCmdletWrapper and update its logon credentials.
 2) If you are protecting SharePoint Search, then run "ConfigureSharePoint.exe -EnableSPSearchProtection" as well on the front-end web server.