Scan not working

[atax112]

Hello.

(this is the first time I actively use github/open an issue)
I am running latest Home Assistant, installed the 3 addons, scan does not work.

I have, however, read the MAC from my phones BT menu, it actually shows in the name of the thermostat...
Added it to the key tool and was already up and running for some days, but trying again, it wont work.

Thermostat status is unavailable/unknown...
Not sure what to do.

Start scanning
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/runpy.py", line 197, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/usr/local/lib/python3.9/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "/usr/local/lib/python3.9/site-packages/libetrv/cli.py", line 80, in <module>
    fire.Fire(CLI)
  File "/usr/local/lib/python3.9/site-packages/fire/core.py", line 141, in Fire
    component_trace = _Fire(component, args, parsed_flag_args, context, name)
  File "/usr/local/lib/python3.9/site-packages/fire/core.py", line 466, in _Fire
    component, remaining_args = _CallAndUpdateTrace(
  File "/usr/local/lib/python3.9/site-packages/fire/core.py", line 681, in _CallAndUpdateTrace
    component = fn(*varargs, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/libetrv/cli.py", line 22, in scan
    for device, key in eTRVDevice.scan(timeout):
  File "/usr/local/lib/python3.9/site-packages/libetrv/device.py", line 41, in scan
    devices = btle.Scanner().scan(1)
  File "/usr/local/lib/python3.9/site-packages/bluepy/btle.py", line 852, in scan
    self.start(passive=passive)
  File "/usr/local/lib/python3.9/site-packages/bluepy/btle.py", line 800, in start
    self._mgmtCmd(self._cmd())
  File "/usr/local/lib/python3.9/site-packages/bluepy/btle.py", line 312, in _mgmtCmd
    raise BTLEManagementError("Failed to execute management command '%s'" % (cmd), rsp)
bluepy.btle.BTLEManagementError: Failed to execute management command 'scan'
Detected eTRV devices:
Done scanning