MySQL Error Message
An empty or illegal privilege identifier was ignored when
      global privileges were read from disk.
Reason for the Error
ER_EMPTY_PRIVILEGE_NAME_IGNORED
      was added in 8.0.22.
An empty or illegal privilege identifier was ignored when
      global privileges were read from disk.
ER_EMPTY_PRIVILEGE_NAME_IGNORED
      was added in 8.0.22.