Oracle : Ошибка ORA-29342

"user %s does not exist in the database"
*Cause: The referred user is one of the owners of data in the
pluggable set. This user does not exist in the database.
*Action: Consider either creating the user in the database or map
the user to a different user via FROM_USER and TO_USER
import options.

Попробовать перевести

Поискать эту ошибку на форуме