Telegram bot with pythonanywhere. JSON issue - json

Question

I'm trying to deploy Telegram bot on pythonanywhere. Here is my code. All was working until I updated repository. Nothing was change in this piece of code. But it happed not working now. The get_message function not even calls. May be it is some problems with JSON or so, i don't understand exactly. How to get rid of this error?
URL = 'name.pythonanywhere.com'
app = Flask(__name__)
sslify = SSLify(app)
bot.remove_webhook()
bot.set_webhook(url=URL)
bot.send_message(userID, 'helo')
#app.route('/', methods=['POST', 'GET'])
def get_message():
update = types.Update.de_json(request.stream.read().decode('utf-8'))
bot.process_new_updates([update])
return 'ok', 200
2023-01-15 22:15:05,776: Exception on / [GET]
Traceback (most recent call last):
File "/home/kentus/.local/lib/python3.9/site-packages/flask/app.py", line 2077, in wsgi_app
response = self.full_dispatch_request()
File "/home/kentus/.local/lib/python3.9/site-packages/flask/app.py", line 1526, in full_dispatch_request
return self.finalize_request(rv)
File "/home/kentus/.local/lib/python3.9/site-packages/flask/app.py", line 1545, in finalize_request
response = self.make_response(rv)
File "/home/kentus/.local/lib/python3.9/site-packages/flask/app.py", line 1701, in make_response
raise TypeError(
TypeError: The view function for 'get_message' did not return a valid response. The function either returned None or ended without a return statement.
2023-01-15 22:52:17,579: Exception on / [GET]
Traceback (most recent call last):
File "/home/kentus/.local/lib/python3.9/site-packages/flask/app.py", line 2077, in wsgi_app
response = self.full_dispatch_request()
File "/home/kentus/.local/lib/python3.9/site-packages/flask/app.py", line 1525, in full_dispatch_request
rv = self.handle_user_exception(e)
File "/home/kentus/.local/lib/python3.9/site-packages/flask/app.py", line 1523, in full_dispatch_request
rv = self.dispatch_request()
File "/home/kentus/.local/lib/python3.9/site-packages/flask/app.py", line 1509, in dispatch_request
return self.ensure_sync(self.view_functions[rule.endpoint])(**req.view_args)
File "/home/kentus/english_bot/app/main.py", line 177, in get_message
update = types.Update.de_json(request.stream.read().decode('utf-8'))
File "/home/kentus/.local/lib/python3.9/site-packages/telebot/types.py", line 96, in de_json
obj = cls.check_json(json_string, dict_copy=False)
File "/home/kentus/.local/lib/python3.9/site-packages/telebot/types.py", line 80, in check_json
return json.loads(json_type)
File "/usr/local/lib/python3.9/json/__init__.py", line 346, in loads
return _default_decoder.decode(s)
File "/usr/local/lib/python3.9/json/decoder.py", line 337, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/usr/local/lib/python3.9/json/decoder.py", line 355, in raw_decode
raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
I tried to manipulate the webhook but it ok with it. I guess. getWebhookInfo method shows correct url.
i tried to run locally flask app with public URL using ngrok to debug it locally, but i had errors with setting webhook on ngrok URL.
I even asked ChatGPT and he didn't help.