RFLink error

Trying to add a rflink. I know the rf link is working as I used it with domoticz.

I updated the rf link to version 48.
Home assistant 0.82.1
usb connection : port: /dev/devttyACM0

The it connect’s but give’s an error:

2018-11-24 15:29:27 INFO (MainThread) [homeassistant.components.rflink] Initiating Rflink connection
2018-11-24 15:29:27 INFO (MainThread) [homeassistant.components.rflink] Connected to Rflink
2018-11-24 15:29:27 DEBUG (MainThread) [rflink.protocol] connected
2018-11-24 15:29:50 DEBUG (MainThread) [rflink.protocol] received data:

2018-11-24 15:29:50 ERROR (MainThread) [homeassistant.core] Error doing job: Exception in callback SerialTransport._read_ready()
Traceback (most recent call last):
File “/usr/lib/python3.5/asyncio/events.py”, line 126, in _run
self._callback(*self._args)
File “/srv/homeassistant/lib/python3.5/site-packages/serial_asyncio/init.py”, line 106, in _read_ready
self._protocol.data_received(data)
File “/srv/homeassistant/lib/python3.5/site-packages/rflink/protocol.py”, line 46, in data_received
data = data.decode()
UnicodeDecodeError: ‘utf-8’ codec can’t decode byte 0x91 in position 15: invalid start byte
2018-11-24 15:29:51 DEBUG (MainThread) [rflink.protocol] received data:

IIRC when I had that error the port setting was wrong.