Error message 'virtual_class_not_allowed'

I am new at this community and with Homey Pro 2019 device.
I am adding most KaKu devices to Homey. First I could change device names but after some adding devices I get the message ’ Virtual_class_not_allowed’.
I tried to find anything about this message, but unfortunatly not found!
Who can tell me what the message is about and how to solve?