alfred-bluetooth-workflow: workflow not working

The workflow suddenly stopped showing or being able to connect to any bluetooth devices.

I can restart and turn bluetooth off, etc., however no devices are shown. See below for debug error. Any help or advice would be greatly appreicated as this is/was a very helpful workflow!

[13:56:43.926] Logging Started...
[13:56:46.873] Bluetooth Connector[Script Filter] Queuing argument ''
[13:56:47.172] Bluetooth Connector[Script Filter] Script with argv '(null)' finished
[13:56:47.175] ERROR: Bluetooth Connector[Script Filter] Code 1: Traceback (most recent call last):
  File "/Users/atanas/OneDrive - University of Wollongong/PhD/__Archive/alfred/Alfred.alfredpreferences/workflows/user.workflow.8C9225C7-0B9F-4C4D-A8A6-1B6BE559DF96/alfred_bluetooth_workflow.py", line 5, in <module>
    from workflow import Workflow3
  File "/Users/atanas/OneDrive - University of Wollongong/PhD/__Archive/alfred/Alfred.alfredpreferences/workflows/user.workflow.8C9225C7-0B9F-4C4D-A8A6-1B6BE559DF96/workflow/__init__.py", line 16, in <module>
    from .workflow import Workflow, manager
  File "/Users/atanas/OneDrive - University of Wollongong/PhD/__Archive/alfred/Alfred.alfredpreferences/workflows/user.workflow.8C9225C7-0B9F-4C4D-A8A6-1B6BE559DF96/workflow/workflow.py", line 25, in <module>
    import cPickle
ModuleNotFoundError: No module named 'cPickle'

ProductName:    Mac OS X
ProductVersion: 10.15.7
BuildVersion:   19H15
Alfred: 4.3.1
alfred-bluetooth-workflow: v0.9.0

Please let me know if you need any further info. Cheers.