Error when exporting a VM

Hi,

i  am having an error while trying to export a VM from an esxi 6.7 host to an other.

Core is version 6.1.3.100, VM is 2012 R2 Server protected agentlessly.

when i try to export,  nothing happens ( no transfer) , and it hangs after 40 minutes.

with the following error:

Server side:
Replay.Core.Contracts.Export.ExportException: Cannot execute an export task  ---> System.AggregateException: Une ou plusieurs erreurs se sont produites. ---> System.AggregateException: Une ou plusieurs erreurs se sont produites. ---> System.AggregateException: Une ou plusieurs erreurs se sont produites. ---> Replay.Common.VddkApi.Contracts.Exceptions.VddkApiOpenFailedException: Opération 'Open'  avec connection = '677275824' path = '[DAS-KEY4-001] srvintreLAB/disk2000.vmdk' openFlags = 'VIXDISKLIBFLAGNONE' a échoué avec VddkApiException Cannot connect to the host ---> Replay.Common.VddkApi.Contracts.Exceptions.VddkApiException: Cannot connect to the host
   à Replay.Common.VddkApi.Implementation.VddkApiNative.ThrowIfError(VixError error)
   à Replay.Common.VddkApi.Implementation.VddkApiNative.Open(IntPtr connectionHandle, String path, OpenFlags openFlags, Boolean handleProcessCorruptedStateExceptions)
   à Replay.Common.Implementation.Virtualization.VddkApi.VddkApiService.Open(OpenDiskParameters diskParameters)



--- End of inner exception stack trace ---
   à Replay.Common.Implementation.Virtualization.VddkApi.VddkApiProxy.Query[T](Func1 query, Boolean shouldRetry)
   à Replay.Common.Implementation.Virtualization.VddkApi.VddkApiProxy.Open(IVddkConnection connection, String path, OpenFlags openFlags)
   à Replay.Common.Implementation.Virtualization.Vmdk.VmdkVirtualDisk.OpenDisk(String path)
   à Replay.Common.Implementation.Virtualization.Vmdk.VmdkVirtualDisk.MountBase()
   à Replay.Common.Implementation.Virtualization.Vmdk.VmdkVirtualDisk.WriteInternal(VirtualDiskTarget target, Action action)
   à Replay.Common.Implementation.Virtualization.DiskWriteCommandProcessor.WriteWithRetry(Action action)
   à Replay.Common.Implementation.Virtualization.DiskDataAccumulator.Flush()
   à Replay.Common.Implementation.Virtualization.DiskWriteCommandProcessor.Dispose()
   à Replay.Common.Implementation.Virtualization.VirtualDiskWriter.WriteTask(IDictionary2 virtualDisks, VirtualDiskTarget target, CancellationToken cancellationToken, BlockingCollection1 sourceCollection, Action2 progressCallback, Func1 replaceDisksOnFailureCallback, Action3 failureCallback)
   à Replay.Common.Implementation.Virtualization.VirtualDiskWriter.<>cDisplayClass1.b0()
   à System.Threading.Tasks.Task.Execute()



--- End of inner exception stack trace ---
   à System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
   à System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
   à Replay.Common.Implementation.Virtualization.VirtualMachineBuilderBase.SafeWriteCompletion()
   à Replay.Common.Implementation.Virtualization.VirtualMachineBuilderBase.BuildVM()
   à System.Threading.Tasks.Task.Execute()



--- End of inner exception stack trace ---
   à System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
   à System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
   à Replay.Core.Implementation.Export.VirtualMachineExporterBase.RunWorker(IDiagnosticContext context)
   à System.Threading.Tasks.Task.Execute()



--- End of inner exception stack trace ---
   à System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
   à System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
   à Replay.Core.Implementation.Export.ExportJob.ExportTask()



--- End of inner exception stack trace ---
   à Replay.Core.Implementation.Export.ExportJob.ExportTask()
   à System.Threading.Tasks.Task.Execute()


any solution for this?