User rights
From MoodleDocs
There is no user by the name "Wuwa-reply". Check your spelling.
Note: You are currently viewing documentation for Moodle 3.1. Up-to-date documentation for the latest stable version of Moodle is probably available here: UserRights/Wuwa-reply.
There is no user by the name "Wuwa-reply". Check your spelling.