"Host is down" on my Vault

I have the Vault first generation, Yesterday we had numerous electric failure and since then  I cannot access to my collection music store in the Vault. Each time I have the message: cannot access to audio file: Host is down. The led on the Vault is white. I disconnect the Vault and reconnect it, the led light turn solid red for a while, then flash green for a few seconds and turn white.  Impossible to play my collection but I can access to Tidal, Tunekin .

Can you help me.

Thank's

René Allard