Could not find appropriate drive error

After installing of a new version of Deployment Manager v2.3.20.2 I am getting this error when deploying:

Failed: DeploymentControllerActivity
2014-01-28 12:06:54 +00:00 INFO Stage 1: Downloading packages from NuGet servers
2014-01-28 12:06:59 +00:00 INFO Stage 2: Uploading packages to target machines
2014-01-28 12:07:01 +00:00 ERROR System.ServiceModel.FaultException`1[System.ServiceModel.ExceptionDetail]: Could not find appropriate drive. (Fault Detail is equal to An ExceptionDetail, likely created by IncludeExceptionDetailInFaults=true, whose value is:
System.IO.IOException: Could not find appropriate drive.
at RedGate.Deploy.Shared.Util.PhysicalFileSystem.GetTotalNumberOfFreeBytes(String directoryPath)
at RedGate.Deploy.Shared.Util.PhysicalFileSystem.EnsureDiskHasEnoughFreeSpace(String directoryPath, Int64 requiredSpaceInBytes)
at RedGate.Deploy.Agent.Deployment.Packages.PackageCache.GetFileNameToWritePackage(PackageMetadata metadata)
at RedGate.Deploy.Agent.Services.Packages.PackageService.BeginUpload(PackageMetadata metadata)
at SyncInvokeBeginUpload(Object , Object[] , Object[] )
at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs)
at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.Pr...).
2014-01-28 12:07:01 +00:00 ERROR One or more errors occurred. System.ServiceModel.FaultException`1[System.ServiceModel.ExceptionDetail]: Could not find appropriate drive. (Fault Detail is equal to An ExceptionDetail, likely created by IncludeExceptionDetailInFaults=true, whose value is:
System.IO.IOException: Could not find appropriate drive.
at RedGate.Deploy.Shared.Util.PhysicalFileSystem.GetTotalNumberOfFreeBytes(String directoryPath)
at RedGate.Deploy.Shared.Util.PhysicalFileSystem.EnsureDiskHasEnoughFreeSpace(String directoryPath, Int64 requiredSpaceInBytes)
at RedGate.Deploy.Agent.Deployment.Packages.PackageCache.GetFileNameToWritePackage(PackageMetadata metadata)
at RedGate.Deploy.Agent.Services.Packages.PackageService.BeginUpload(PackageMetadata metadata)
at SyncInvokeBeginUpload(Object , Object[] , Object[] )
at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs)
at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.Pr...).

Success: Stage 1: Downloading packages from NuGet servers
2014-01-28 12:06:54 +00:00 INFO Making a list of packages to download
2014-01-28 12:06:59 +00:00 INFO All packages have been downloaded

Success: Download package Service 4.18.0.402-master from NuGet feed: Server NuGet
2014-01-28 12:06:54 +00:00 INFO Downloading package Service 4.18.0.402-master from feed: 'http://nuget.corp.internal.com/api/v2/'
2014-01-28 12:06:54 +00:00 DEBUG Downloaded packages will be stored in: E:\DeploymentManager\PackageCache
2014-01-28 12:06:54 +00:00 DEBUG Finding package (attempt 1 of 5)
2014-01-28 12:06:58 +00:00 DEBUG Found package Service 4.18.0.402-master
2014-01-28 12:06:59 +00:00 INFO Download complete

Failed: Stage 2: Uploading packages to target machines
2014-01-28 12:06:59 +00:00 INFO Preparing to upload packages
2014-01-28 12:06:59 +00:00 INFO Uploading packages...
2014-01-28 12:07:01 +00:00 ERROR System.ServiceModel.FaultException`1[System.ServiceModel.ExceptionDetail]: Could not find appropriate drive. (Fault Detail is equal to An ExceptionDetail, likely created by IncludeExceptionDetailInFaults=true, whose value is:
System.IO.IOException: Could not find appropriate drive.
at RedGate.Deploy.Shared.Util.PhysicalFileSystem.GetTotalNumberOfFreeBytes(String directoryPath)
at RedGate.Deploy.Shared.Util.PhysicalFileSystem.EnsureDiskHasEnoughFreeSpace(String directoryPath, Int64 requiredSpaceInBytes)
at RedGate.Deploy.Agent.Deployment.Packages.PackageCache.GetFileNameToWritePackage(PackageMetadata metadata)
at RedGate.Deploy.Agent.Services.Packages.PackageService.BeginUpload(PackageMetadata metadata)
at SyncInvokeBeginUpload(Object , Object[] , Object[] )
at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs)
at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.Pr...).

Any ideas how to fix it?