What is nobody@localhost in Google calendar app I seen something strange option in my Google calendar app in my realme mobile.

There is account with name "NOBODY@LOCALHOST" and with the check box option "nobody@localhost"

I didn't seen before in my past mobile

Any solution appreciated?
This mostly appears in Oppo/Realme phones or maybe all phones from China.

Anyway,to remove it,install on your phone iCal from Google Play Store.
Open the app, use it to look at the calendars on your phones, choose nobody@localhost and delete it using iCal. Job done.

Hope this helped.