certificate verify failed: unable to get local issuer certificate

[Kzer-Za]

The example with mimic3 'Hello world.' | aplay works just fine. However, when I start mimic3-server, I am greeted by some errors:

INFO:mimic3_http.__main__:Starting web server
ERROR:mimic3_http.app:Error setting up swagger UI page
Traceback (most recent call last):
  File "mimic3_http/app.py", line 338, in get_app
  File "swagger_ui/__init__.py", line 13, in api_doc
Exception: No match application isinstance type!
[2023-08-25 22:58:35 +0300] [70595] [INFO] Running on http://0.0.0.0:59125 (CTRL + C to quit)
INFO:hypercorn.error:Running on http://0.0.0.0:59125 (CTRL + C to quit)

Then, after opening the web-interface, if I select any language other than EN-UK, the web interface displays this error: URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1123)>. Below I give the more detailed output from the console:

ERROR:mimic3_http.synthesis:Error during inference
Traceback (most recent call last):
  File "urllib/request.py", line 1346, in do_open
  File "http/client.py", line 1255, in request
  File "http/client.py", line 1301, in _send_request
  File "http/client.py", line 1250, in endheaders
  File "http/client.py", line 1010, in _send_output
  File "http/client.py", line 950, in send
  File "http/client.py", line 1424, in connect
  File "ssl.py", line 500, in wrap_socket
  File "ssl.py", line 1040, in _create
  File "ssl.py", line 1309, in do_handshake
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1123)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "mimic3_http/synthesis.py", line 125, in do_synthesis_proc
  File "mimic3_http/synthesis.py", line 81, in do_synthesis
  File "mimic3_http/synthesis.py", line 61, in do_synthesis
  File "mimic3_tts/tts.py", line 368, in speak_text
  File "mimic3_tts/tts.py", line 569, in _get_or_load_voice
  File "mimic3_tts/tts.py", line 621, in _download_voice
  File "mimic3_tts/download.py", line 121, in download_voice
  File "urllib/request.py", line 214, in urlopen
  File "urllib/request.py", line 517, in open
  File "urllib/request.py", line 534, in _open
  File "urllib/request.py", line 494, in _call_chain
  File "urllib/request.py", line 1389, in https_open
  File "urllib/request.py", line 1349, in do_open
urllib.error.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1123)>
ERROR:mimic3_http.app:<urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1123)>
Traceback (most recent call last):
  File "urllib/request.py", line 1346, in do_open
  File "http/client.py", line 1255, in request
  File "http/client.py", line 1301, in _send_request
  File "http/client.py", line 1250, in endheaders
  File "http/client.py", line 1010, in _send_output
  File "http/client.py", line 950, in send
  File "http/client.py", line 1424, in connect
  File "ssl.py", line 500, in wrap_socket
  File "ssl.py", line 1040, in _create
  File "ssl.py", line 1309, in do_handshake
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1123)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "quart/app.py", line 1673, in full_dispatch_request
  File "quart/app.py", line 1718, in dispatch_request
  File "mimic3_http/app.py", line 215, in app_tts
  File "mimic3_http/app.py", line 103, in text_to_wav
  File "mimic3_http/synthesis.py", line 125, in do_synthesis_proc
  File "mimic3_http/synthesis.py", line 81, in do_synthesis
  File "mimic3_http/synthesis.py", line 61, in do_synthesis
  File "mimic3_tts/tts.py", line 368, in speak_text
  File "mimic3_tts/tts.py", line 569, in _get_or_load_voice
  File "mimic3_tts/tts.py", line 621, in _download_voice
  File "mimic3_tts/download.py", line 121, in download_voice
  File "urllib/request.py", line 214, in urlopen
  File "urllib/request.py", line 517, in open
  File "urllib/request.py", line 534, in _open
  File "urllib/request.py", line 494, in _call_chain
  File "urllib/request.py", line 1389, in https_open
  File "urllib/request.py", line 1349, in do_open
urllib.error.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1123)>

Steps to reproduce the behavior:

1. Start mimic3-server and open http://localhost:59125
2. Click on 'speak' without changing the default language or default text
3. See error URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1123)>

Expected behavior The text in the input field should be spoken in the selected (i.e. default) language.

Environment (please complete the following information):

• Device type: desktop
• OS: Manjaro Linux
• Mycroft-core version: not installed
• Other versions: Python 3.11.3-2

Additional context No modifications to source code or config files.

If I change in the web-interface the language to English (UK), it is spoken as it is supposed to be.