Courier was working fine and from this morning all of the datatypes won't transfer. I got this error for every datatype that i try to transfer only the id is different for the coresponding datatype. Umbraco is v 6.1.6 and Courier is 2.7.8.43. Anyone know where to look into this problem? 

Thanks!

error:Umbraco.Courier.Core.Exceptions.PackageException: Unable to load item with id '0225af17-b302-49cb-9176-b9f35cab9c17' from provider 'Datatypes' ---> System.InvalidCastException: Unable to cast object of type 'Umbraco.Courier.ItemProviders.DataType' to type 'Umbraco.Courier.ItemProviders.ContentPropertyData'. at AllianzUploadDataResolver.AllianzUpload.ShouldExecute(Item item, ItemEvent itemEvent) in c:\Inetpub\Allianz2013\App_Code\AllianzUploadDataResolver.cs:line 35 at Umbraco.Courier.Core.ResolutionManager.executeResolver(Item item, ItemEvent e, ItemProvider provider) at Umbraco.Courier.Core.ItemProvider.Package(ItemIdentifier id) at Umbraco.Courier.RepositoryProviders.Local.Package(ItemIdentifier itemId) at Umbraco.Courier.Core.Packaging.RevisionPackaging.PackageItem(ItemIdentifier itemId, ItemProvider provider, QueuedItemIdentifier itemInQueue) --- End of inner exception stack trace --- at Umbraco.Courier.Core.Packaging.RevisionPackaging.PackageItem(ItemIdentifier itemId, ItemProvider provider, QueuedItemIdentifier itemInQueue) at Umbraco.Courier.Core.Packaging.RevisionPackaging.PackageBatch() at Umbraco.Courier.Core.Packaging.RevisionPackaging.Package() at Umbraco.Courier.Core.Tasks.PackagingTask.Run() at Umbraco.Courier.Core.TaskManager.manageTask(IRevisionTask value) 13.8.2014 10:50:15