Problem with Manual Outlook Sync

When I start Wieldy, syncing works fine. When I manually sycn with Outlook Synchronizer later, Wieldy generates an error:

System.RUntime.InteropServices.COMException( 0x001010A):
Creating an instance of the COM componetn with the CLSID {0006F03A-0000-0000-C000-000000000046} from the IClassfactory failed due to the following error:
8001010a.
at Wieldy.Synchroizer.Outlook.OoulookSynchronizer.Start( SynchronizerSettings synchronizerSettings, SecureString readPassword, Boolean readRequiored, Func`2 continueHandler, Guid id)
at Wieldy.Core.ManagerCore.Synchronize( SecureString password, ConfiguredSynchronizer configuredSynchronizer, FavorDirectionType favorDirection, Func`3 configureSynchronization, Func`2 continueHandler, IProgrgessWindow progressWindow )
at Wieldy.Core.CommunicatorBase. ( B oolean, ConfiguredSynchronizer, FavorDirectionType, Func`3 Boolean, Func`2 )
at Wieldy.Core.CommunicatorBase. ( B oolean, ConfiguredSynchronizer, FavorDirectionType, Func`3 Boolean, Func`2 )

(What about copy/paste inthis error message box?)
Using Wieldy 0.2.7.689, Windws 7 Enterprise 64 bits, Outlook 2010