google home max : not supported

[jeeck-jan]

google home max gives this error's
2020-12-30 10:01:39.610 Error: (google casts) Unsupported device type: 'Eetkamer', Model: 'Google Home Max', UUID: '14acb0ae-a970-e057-ccde-87d77984c8d3' + IP: 'None:8009'
2020-12-30 10:01:39.611 Error: (google casts) new_connection_status: dictionary changed size during iteration
2020-12-30 10:01:39.611 Error: (google casts) new_connection_status: ConnectionStatus(status='CONNECTING', address=NetworkAddress(address=None, port=8009))
2020-12-30 10:57:18.769 Error: (google casts) new_media_status: unsupported operand type(s) for +: 'NoneType' and 'float'
2020-12-30 10:57:18.770 Error: (google casts) <class 'TypeError'>, plugin.py, Line: 267

device "source" is not created.

other google cast devices works fine.

thanks