SCOM 2016 Event ID 29181

Hi,

on my SCOM Server I have the following error event with ID 29181:

OpsMgr Management Configuration Service failed to execute 'SnapshotSynchronization' engine work item due to the following exception

Microsoft.EnterpriseManagement.ManagementConfiguration.DataAccessLayer.DataAccessException: Data access operation failed
   at Microsoft.EnterpriseManagement.ManagementConfiguration.DataAccessLayer.DataAccessOperation.ExecuteSynchronously(Int32 timeoutSeconds, WaitHandle stopWaitHandle)
   at Microsoft.EnterpriseManagement.ManagementConfiguration.CmdbOperations.CmdbDataProvider.GetConfigurationSnapshotNextBatch(SnapshotProcessWatermark watermark)
   at Microsoft.EnterpriseManagement.ManagementConfiguration.Engine.TracingConfigurationDataProvider.GetConfigurationSnapshotNextBatch(SnapshotProcessWatermark watermark)
   at Microsoft.EnterpriseManagement.ManagementConfiguration.Engine.SnapshotSynchronizationWorkItem.TransferData(SnapshotProcessWatermark initialWatermark)
   at Microsoft.EnterpriseManagement.ManagementConfiguration.Engine.SnapshotSynchronizationWorkItem.ExecuteSharedWorkItem()
   at Microsoft.EnterpriseManagement.ManagementConfiguration.Interop.SharedWorkItem.ExecuteWorkItem()
   at Microsoft.EnterpriseManagement.ManagementConfiguration.Interop.ConfigServiceEngineWorkItem.Execute()
-----------------------------------
System.InvalidCastException: Specified cast is not valid.
   at Microsoft.EnterpriseManagement.ManagementConfiguration.CmdbOperations.ManagedEntitySnapshotReadOperation.ReadData(SqlDataReader reader)
   at Microsoft.EnterpriseManagement.ManagementConfiguration.DataAccessLayer.ReaderSqlCommandOperation.SqlCommandCompleted(IAsyncResult asyncResult)

Has anyone an Idea how to solve this?

Regards