Interbase problems... help pls

Хи алл! Проблемы при Restore. Выдаёт ошибку: gbak: restoring privilege for user DPG gbak: creating indexes gbak: cannot commit index RDB$FOREIGN52 gbak: ERROR: violation of FOREIGN KEY constraint "INTEG_76" on table "MATERIALS" gbak: ERROR: action cancelled by trigger (3) to preserve data integrity gbak: ERROR: Cannot deactivate primary index gbak: Exiting before completion due to errors Что делать???