Backup failure with error "could not set user id for process(31)"

Hi All,

Master server - windows server 2008 NBU 7.5 

One of the client backup started to fail with error "could not set user id for process(31)".. Backup was running fine before.

There is no much suggestions for this error in symantec portal. only found below technote.
https://support.symantec.com/en_US/article.TECH87495.html 

As per update from Windows admin, there is no change in language/locale setting.

Need help to fix this failure