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Sir how to solve this error Tunnel connection failed: 403 Forbidden

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File "/home/navikaran1/.virtualenvs/myalgo_env/lib/python3.9/site-packages/urllib3/connectionpool.py", line 700, in urlopen                                          
    self._prepare_proxy(conn)                                                                                                                                          
  File "/home/navikaran1/.virtualenvs/myalgo_env/lib/python3.9/site-packages/urllib3/connectionpool.py", line 996, in _prepare_proxy                                   
    conn.connect()                                                                                                                                                     
  File "/home/navikaran1/.virtualenvs/myalgo_env/lib/python3.9/site-packages/urllib3/connection.py", line 369, in connect                                              
    self._tunnel()                                                                                                                                                     
  File "/usr/local/lib/python3.9/http/client.py", line 903, in _tunnel                                                                                                 
    raise OSError(f"Tunnel connection failed: {code} {message.strip()}")                                                                                               
OSError: Tunnel connection failed: 403 Forbidden

During handling of the above exception, another exception occurred:

Traceback (most recent call last):                                                                                                                                     
  File "/home/navikaran1/.virtualenvs/myalgo_env/lib/python3.9/site-packages/requests/adapters.py", line 489, in send                                                  
    resp = conn.urlopen(                                                                                                                                               
  File "/home/navikaran1/.virtualenvs/myalgo_env/lib/python3.9/site-packages/urllib3/connectionpool.py", line 787, in urlopen                                          
    retries = retries.increment(                                                                                                                                       
  File "/home/navikaran1/.virtualenvs/myalgo_env/lib/python3.9/site-packages/urllib3/util/retry.py", line 592, in increment                                            
    raise MaxRetryError(_pool, url, error or ResponseError(cause))                                                                                                     
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='chartink.com', port=443): Max retries exceeded with url: /screener/ (Caused by ProxyError('Cannot connect t
o proxy.', OSError('Tunnel connection failed: 403 Forbidden')))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):                                                                                                                                     
  File "/home/navikaran1/myalgo/CHARTINK_Auto_buy.py", line 33, in <module>                                                                                            
    data = GetDataFromChartink(Condition)                                                                                                                              
  File "/home/navikaran1/myalgo/CHARTINK_Auto_buy.py", line 22, in GetDataFromChartink                                                                                 
    r = s.get(Charting_Link)                                                                                                                                           
  File "/home/navikaran1/.virtualenvs/myalgo_env/lib/python3.9/site-packages/requests/sessions.py", line 600, in get                                                   
    return self.request("GET", url, **kwargs)                                                                                                                          
  File "/home/navikaran1/.virtualenvs/myalgo_env/lib/python3.9/site-packages/requests/sessions.py", line 587, in request                                               
    resp = self.send(prep, **send_kwargs)                                                                                                                              
  File "/home/navikaran1/.virtualenvs/myalgo_env/lib/python3.9/site-packages/requests/sessions.py", line 701, in send                                                  
    r = adapter.send(request, **kwargs)                                                                                                                                
  File "/home/navikaran1/.virtualenvs/myalgo_env/lib/python3.9/site-packages/requests/adapters.py", line 559, in send                                                  
    raise ProxyError(e, request=request)                                                                                                                               
requests.exceptions.ProxyError: HTTPSConnectionPool(host='chartink.com', port=443): Max retries exceeded with url: /screener/ (Caused by ProxyError('Cannot connect to 
proxy.', OSError('Tunnel connection failed: 403 Forbidden')))                                                                                                          
(myalgo_env) 15:31 ~/myalgo $

See this help page: https://help.pythonanywhere.com/pages/403ForbiddenError/.