ZFS rollback WIndows 7 Client

Good morning,

I have a seafile-server_6.1.2 community server “Ubuntu 16” on a ZFS platform.

When I perform a snapshot of the server and rollback, the Windows client loses the “Download” error. A manual synchronization is not synonymous.

Furthermore, there is no synchronization.
Server is down for snashot and rollback “Promox”

here the seafile.log from the Windows client

[09/28/17 10:43:06] http-tx-mgr.c(3395): Failed to update branch of repo 2577908d.
[09/28/17 10:43:06] http-tx-mgr.c(1012): Transfer repo ‘2577908d’: (‘normal’, ‘update-branch’) --> (‘error’, ‘finished’)
[09/28/17 10:43:06] sync-mgr.c(728): Repo ‘Meine Bibliothek’ sync state transition from uploading to ‘error’: ‘Error occured in upload.’.
[09/28/17 10:43:09] sync-mgr.c(660): Repo ‘Meine Bibliothek’ sync state transition from ‘synchronized’ to ‘uploading’.

If I delete all libraries on the client, then to download and sync “select folder”, then goes everything again.
So whenever a rollback “ZFS” is made by the server, everything has to be deleted on the client.

Does anyone have a tip?

Many Thanks