Running server without certificate

[jmrkvicka909]

Hi, is it possible to run server without certificate? According to documentation values CERT_CRT and CERT_KEY is not requried in config file. Nevertheless when I try to run squarephish server
python3 squish.py server -c settings.config --debug
I get this error

[2023-07-31 12:06:56,096] [info]         squish.py:251  - Starting: SquarePhish -- v0.1.0
 * Serving Flask app 'squarephish.modules.server'
 * Debug mode: off
Traceback (most recent call last):
  File "/home/stvorcovator/squarephish/squish.py", line 275, in <module>
    app.run(
  File "/home/stvorcovator/.local/lib/python3.10/site-packages/flask/app.py", line 889, in run
    run_simple(t.cast(str, host), port, self, **options)
  File "/home/stvorcovator/.local/lib/python3.10/site-packages/werkzeug/serving.py", line 1075, in run_simple
    srv = make_server(
  File "/home/stvorcovator/.local/lib/python3.10/site-packages/werkzeug/serving.py", line 915, in make_server
    return ThreadedWSGIServer(
  File "/home/stvorcovator/.local/lib/python3.10/site-packages/werkzeug/serving.py", line 790, in __init__
    ssl_context = load_ssl_context(*ssl_context)
  File "/home/stvorcovator/.local/lib/python3.10/site-packages/werkzeug/serving.py", line 633, in load_ssl_context
    ctx.load_cert_chain(cert_file, pkey_file)
FileNotFoundError: [Errno 2] No such file or directory

Thank you in advance.