Duplicati is crashing and doesn't conclude the backup

Duplicati is not executing the backup action. It crashes and shows the message “Stopping after the current file”.
Below is the log.
Thank you in advance.

System.Net.WebException: The operation has timed out.
at Duplicati.Library.Main.BackendManager.List()
at Duplicati.Library.Main.Operation.FilelistProcessor.RemoteListAnalysis(BackendManager backend, Options options, LocalDatabase database, IBackendWriter log, String protectedfile)
at Duplicati.Library.Main.Operation.FilelistProcessor.VerifyRemoteList(BackendManager backend, Options options, LocalDatabase database, IBackendWriter log, String protectedfile)
at Duplicati.Library.Main.Operation.BackupHandler.PreBackupVerify(BackendManager backend, String protectedfile)
at Duplicati.Library.Main.Operation.BackupHandler.d__20.MoveNext()
— End of stack trace from previous location where exception was thrown —
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at CoCoL.ChannelExtensions.WaitForTaskOrThrow(Task task)
at Duplicati.Library.Main.Controller.<>c_DisplayClass14_0.b_0(BackupResults result)
at Duplicati.Library.Main.Controller.RunAction[T](T result, String& paths, IFilter& filter, Action`1 method)
at Duplicati.Library.Main.Controller.Backup(String inputsources, IFilter filter)
at Duplicati.Server.Runner.Run(IRunnerData data, Boolean fromQueue)

Welcome to the forum @codigostr

Thank you for the log. Please give context. Is this an initial backup, a sudden failure of existing, etc.?
What operating system? What Duplicati Destination, Storage Type? Does Test connection work?
Is this all in web browser Duplicati GUI? Regarding stopping, did you ask for it to stop, e.g. doing this


The backup was running, but at a certain point it stopped running.
I can’t stop it from running using the duplicati options you uploaded in the image.

I noticed that after restarting the server it starts running again, but it crashes again after a few days.

Operating system is Windows.
The storage destination is on google driver with a remote volume size of 300MB.

Yes, it is in the duplicati GUI web browser.

Does this mean a multi-day backup or a periodic backup that sometimes finishes and sometimes fails?

This should be possible at certain points in an actually running backup, and in fact it’s one way to get the “Stopping after the current file”.of original post, yet you’re saying it decided to say that without your help?

Original post being in PreBackupVerify suggests backup never really got going. I don’t know why Google Drive would timeout. Are there lots of files at the destination? Alternatively, what size is the source area?

If you don’t have another way to count, Duplicati shows you (when it finishes and makes a log) file stats:

      "KnownFileCount": 602,
      "KnownFileSize": 12964264946,

(for example) in BackendStatistics in Complete log in the job log (assuming that job didn’t fail early).

What exactly are the symptoms of a crash, and does a “Stopping after current file” always go with one?