Backup folder on mapped network drive

I have Synology and have mapped the network drive from it.
In Dupilcati source I have selected that mapped drive.
The backup working OK but after few days gets an error and the database fix is not helping.
Is there any special procedure to backup folders from a mapped network drive?
Thank you

This is the last error. I have add snapshot-policy as Auto
Is anybody can help

Failed: One or more errors occurred.
Details: System.AggregateException: One or more errors occurred. —> System.AggregateException: The stream does not support concurrent IO read or write operations. —> System.NotSupportedException: The stream does not support concurrent IO read or write operations.
at System.Net.ConnectStream.InternalWrite(Boolean async, Byte buffer, Int32 offset, Int32 size, AsyncCallback callback, Object state)
at System.Net.ConnectStream.Write(Byte buffer, Int32 offset, Int32 size)
at Amazon.Runtime.Internal.HttpRequest.WriteToRequestBody(Stream requestContent, Stream contentStream, IDictionary2 contentHeaders, IRequestContext requestContext) at Amazon.Runtime.Internal.HttpHandler1.WriteContentToRequestBody(TRequestContent requestContent, IHttpRequest1 httpRequest, IRequestContext requestContext) at Amazon.Runtime.Internal.HttpHandler1.d__91.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at Amazon.Runtime.Internal.HttpHandler1.d__91.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at Amazon.Runtime.Internal.RedirectHandler.<InvokeAsync>d__11.MoveNext()
— End of stack trace from previous location where exception was thrown —
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Amazon.Runtime.Internal.Unmarshaller.d__31.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Amazon.S3.Internal.AmazonS3ResponseHandler.<InvokeAsync>d__11.MoveNext()
— End of stack trace from previous location where exception was thrown —
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Amazon.Runtime.Internal.ErrorHandler.d__51.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Amazon.Runtime.Internal.CallbackHandler.<InvokeAsync>d__91.MoveNext()
— End of stack trace from previous location where exception was thrown —
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Amazon.Runtime.Internal.EndpointDiscoveryHandler.d__21.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at Amazon.Runtime.Internal.EndpointDiscoveryHandler.<InvokeAsync>d__21.MoveNext()
— End of stack trace from previous location where exception was thrown —
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Amazon.Runtime.Internal.CredentialsRetriever.d__71.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at Amazon.Runtime.Internal.RetryHandler.<InvokeAsync>d__101.MoveNext()
— End of stack trace from previous location where exception was thrown —
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at Amazon.Runtime.Internal.RetryHandler.d__101.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Amazon.Runtime.Internal.CallbackHandler.<InvokeAsync>d__91.MoveNext()
— End of stack trace from previous location where exception was thrown —
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Amazon.Runtime.Internal.CallbackHandler.d__91.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Amazon.S3.Internal.AmazonS3ExceptionHandler.<InvokeAsync>d__11.MoveNext()
— End of stack trace from previous location where exception was thrown —
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Amazon.Runtime.Internal.ErrorCallbackHandler.d__51.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Amazon.Runtime.Internal.MetricsHandler.<InvokeAsync>d__11.MoveNext()
— End of stack trace from previous location where exception was thrown —

What back end are you using? I’m thinking S3 or S3 compatible? Which S3 type back end is it? True AWS S3, or…?

It is S3 compatible
Scaleway - scaleway.com

There are a few threads where people troubleshot issues with Scaleway. It might work better if you adjust some settings on your “destination” config page. But I’m not certain.

Hmm, I try to make a change to the “destination” config page but can’t make it work as expected.
Do you know is it possible to submit to Duplicati developers add Scaleway to Duplicati?
Scaleway have a fair price and good support
Tnx

I don’t think it’s necessary as Scaleway explicitly as a back end option since it is supposed to be S3 compatible. So the S3 compatible back end should already work. I believe some other users have it working. If you search the forum for Scaleway you can find some threads.