ReadyNAS Snapshot error

Log: [2016-01-22 09:07:48] [Info] Replicate version: 1.2.0 build R1 [2016-01-22 09:07:48] [Info] Starting backup job "System Backup [2016-01-22 08h 56m AM]" [2016-01-22 09:07:48] [Info] Create target folder: /c/System Backup [2016-01-22 08h 56m AM] [2016-01-22 09:07:48] [Info] Locking target folder: /c/System Backup [2016-01-22 08h 56m AM] [2016-01-22 09:07:48] [Info] Making full backup [2016-01-22 09:07:48] [Info] p2p connect to viterbistorage1 in 9538989 network [2016-01-22 09:07:52] [Info] Connection method: 0 [2016-01-22 09:07:52] [Info] LAN connection not available [2016-01-22 09:07:52] [Info] Using p2p connection [2016-01-22 09:07:52] [Info] Initializing source device [2016-01-22 09:07:52] [Info] Sending task to source device [2016-01-22 09:07:53] [Info] Awaiting task report [2016-01-22 09:07:54] [Error] Received failed report [2016-01-22 09:07:54] [Error] Unable to create snapshot for "c" [2016-01-22 09:07:54] [Error] Device initialization failed [2016-01-22 09:07:54] [Info] p2p disconnect with viterbistorage1 in 9538989 network [2016-01-22 09:07:54] [Info] Unlock target folder: /c/System Backup [2016-01-22 08h 56m AM] [2016-01-22 09:07:55] [Info] Job finished