The first time the dialog's 'plus' button is clicked, POL produces that kind of output:
Downloading https://phoenicis.playonlinux.com/index.php/wine?os=linux
Traceback (most recent call last):
File "/d/home/ty/p/POL-POM-4/python/wine_versions/WineVersionsFetcher.py", line 27, in _sync_fetch_all_available_wine_versions
handle = urllib.request.urlopen(request, timeout=5)
File "/usr/lib64/python3.9/urllib/request.py", line 214, in urlopen
return opener.open(url, data, timeout)
File "/usr/lib64/python3.9/urllib/request.py", line 517, in open
response = self._open(req, data)
File "/usr/lib64/python3.9/urllib/request.py", line 534, in _open
result = self._call_chain(self.handle_open, protocol, protocol +
File "/usr/lib64/python3.9/urllib/request.py", line 494, in _call_chain
result = func(*args)
File "/usr/lib64/python3.9/urllib/request.py", line 1389, in https_open
return self.do_open(http.client.HTTPSConnection, req,
File "/usr/lib64/python3.9/urllib/request.py", line 1350, in do_open
r = h.getresponse()
File "/usr/lib64/python3.9/http/client.py", line 1377, in getresponse
response.begin()
File "/usr/lib64/python3.9/http/client.py", line 320, in begin
version, status, reason = self._read_status()
File "/usr/lib64/python3.9/http/client.py", line 281, in _read_status
line = str(self.fp.readline(_MAXLINE + 1), "iso-8859-1")
File "/usr/lib64/python3.9/socket.py", line 704, in readinto
return self._sock.recv_into(b)
File "/usr/lib64/python3.9/ssl.py", line 1275, in recv_into
return self.read(nbytes, buffer)
File "/usr/lib64/python3.9/ssl.py", line 1133, in read
return self._sslobj.read(len, buffer)
socket.timeout: The read operation timed out