ora-25401: can not continue fetches

Cause: A failure occured since the last fetch on this statement. Failover was unable to bring the statement to its original state to allow continued fetches.
Action: Reexecute the statement and start fetching from the beginning

no se puede seguir recuperando
impossible de continuer les opérations d'extraction (fetch)
Abrufe können nicht fortgesetzt werden
não é possível continuar extracções