Getting errors running the script on Pi-hole 5.1.2

[dazpp]

Hi

Tried this script with the setup below:
Pi-hole v5.1.2 Web Interface v5.1.1 FTL v5.2

I just get these errors when running it and I have configured the ip and passwords for each of the pi-holes.

root@pihole1:~/pihole-sync# python3 sync.py
Traceback (most recent call last):
File "sync.py", line 53, in get_list
return self._list_cache[list_type]
KeyError: <ListType.WHITELIST: 1>

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "sync.py", line 185, in
sync_lists(hosts)
File "sync.py", line 176, in sync_lists
sync_count = _sync_list(hosts, list_type)
File "sync.py", line 144, in _sync_list
lst = host.get_list(list_type)
File "sync.py", line 65, in get_list
self._list_cache[ListType.WHITELIST] = results[0]
KeyError: 0

Any idea on how to fix this?

Regards.
Daniel