Error during CSV IMport

During my CSV Synchronizer run I get error prompt: An unexpected error has occurred. Please check the execution log.
In the executing log I see output below.
The Object type is filled in with value 'server' and i'm using an RDP Template during import.
System.ArgumentException: Property 'ObjectType' does not exist in the type 'Connection'
at Devolutions.Utils.ReflectionUtils.SetPropertyValue(Object obj, String propertyName, Object value, Boolean allowNull)
at Devolutions.RemoteDesktopManager.Business.BusinessHelper.SetPropertyDirect(Object source, String containerName, String propertyName, Object value)
at Devolutions.RemoteDesktopManager.Business.CsvFormat.CsvImport.ImportFromCsv(String fileName, String rootFolder, Connection connectionTemplate, String& errorMessage, List`1 importCanditates)
at Devolutions.RemoteDesktopManager.Business.CsvSyncDescriptor.ImportFromCsv(String fileName, Connection connection, List`1 connections)