I tried to use the add-on
But it came out like this

there’s an issue with the internet connection.
please check you are connected to the internet.
if you are behind a proxy. please set it in preferences-network

The internet is connected and no proxy is used.

and this is detail
Traceback (most recent call last):
File “C:Program FilesOrangeLibsite-packagesurllib3connection.py”, line 198, in _new_conn
sock = connection.create_connection(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “C:Program FilesOrangeLibsite-packagesurllib3utilconnection.py”, line 85, in create_connection
raise err
File “C:Program FilesOrangeLibsite-packagesurllib3utilconnection.py”, line 73, in create_connection
sock.connect(sa)
ConnectionRefusedError: [WinError 10061] 대상 컴퓨터에서 연결을 거부했으므로 연결하지 못했습니다

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File “C:Program FilesOrangeLibsite-packagesurllib3connectionpool.py”, line 779, in urlopen
self._prepare_proxy(conn)
File “C:Program FilesOrangeLibsite-packagesurllib3connectionpool.py”, line 1048, in _prepare_proxy
conn.connect()
File “C:Program FilesOrangeLibsite-packagesurllib3connection.py”, line 616, in connect
self.sock = sock = self._new_conn()
^^^^^^^^^^^^^^^^
File “C:Program FilesOrangeLibsite-packagesurllib3connection.py”, line 213, in _new_conn
raise NewConnectionError(
urllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPSConnection object at 0x00000240FCBFDF50>: Failed to establish a new connection: [WinError 10061] 대상 컴퓨터에서 연결을 거부했으므로 연결하지 못했습니다

The above exception was the direct cause of the following exception:

urllib3.exceptions.ProxyError: (‘Unable to connect to proxy’, NewConnectionError(‘<urllib3.connection.HTTPSConnection object at 0x00000240FCBFDF50>: Failed to establish a new connection: [WinError 10061] 대상 컴퓨터에서 연결을 거부했으므로 연결하지 못했습니다’))

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File “C:Program FilesOrangeLibsite-packagesrequestsadapters.py”, line 667, in send
resp = conn.urlopen(
^^^^^^^^^^^^^
File “C:Program FilesOrangeLibsite-packagesurllib3connectionpool.py”, line 847, in urlopen
retries = retries.increment(
^^^^^^^^^^^^^^^^^^
File “C:Program FilesOrangeLibsite-packagesurllib3utilretry.py”, line 515, in increment
raise MaxRetryError(_pool, url, reason) from reason # type: ignore[arg-type]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host=’orange.biolab.si’, port=443): Max retries exceeded with url: /addons/list (Caused by ProxyError(‘Unable to connect to proxy’, NewConnectionError(‘<urllib3.connection.HTTPSConnection object at 0x00000240FCBFDF50>: Failed to establish a new connection: [WinError 10061] 대상 컴퓨터에서 연결을 거부했으므로 연결하지 못했습니다’)))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File “C:Program FilesOrangeLibsite-packagesorangecanvasapplicationutilsaddons.py”, line 350, in list_available_versions
defaults = config.addon_defaults_list()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “C:Program FilesOrangeLibsite-packagesOrangecanvasconfig.py”, line 166, in addon_defaults_list
return session.get(OFFICIAL_ADDON_LIST).json()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “C:Program FilesOrangeLibsite-packagesrequestssessions.py”, line 602, in get
return self.request(“GET”, url, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “C:Program FilesOrangeLibsite-packagesrequestssessions.py”, line 589, in request
resp = self.send(prep, **send_kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “C:Program FilesOrangeLibsite-packagesrequestssessions.py”, line 703, in send
r = adapter.send(request, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “C:Program FilesOrangeLibsite-packagesrequestsadapters.py”, line 694, in send
raise ProxyError(e, request=request)
requests.exceptions.ProxyError: HTTPSConnectionPool(host=’orange.biolab.si’, port=443): Max retries exceeded with url: /addons/list (Caused by ProxyError(‘Unable to connect to proxy’, NewConnectionError(‘<urllib3.connection.HTTPSConnection object at 0x00000240FCBFDF50>: Failed to establish a new connection: [WinError 10061] 대상 컴퓨터에서 연결을 거부했으므로 연결하지 못했습니다’)))

Even if I turned off the firewall just in case, it stayed the same.