Error rehydrate during tape replication

Hello

sometime I receive the following error message during the tape replication that follows a full backup.

(I’m sorry but the error message is in French, the French verb “réhydrater” can be literally translated as “to rehydrate”.)

2015-01-11 04:38:37 [1] Impossible de réhydrater le fichier 'pcubua!file:/opt/lacie_d4/hma/sauvegardes PC-HM2/WindowsImageBackup/PC-HM2/Backup 2015-01-05 075501/663b3b3d-47b5-11e1-a201-806e6f6e6963.vhd’

Can somebody help me about this message ?

Thanks

BR

Daniel